Federal Register / Vol. 75, No. 169 / Wednesday, September 1, 2010 / Notices Countervailing Duty Order
at least 85 percent by weight of threads
Act, duties shall be assessed on subject
(9) Narrow woven ribbons constructed merchandise entered, or withdrawn
from pile fabrics (i.e., fabrics with a
surface effect formed by tufts or loops of
after the date of publication of the ITC’s
of material injury. Section 706(b)(1) of
the Act states, ‘‘If the Commission, in its
as a gift bag, gift box, gift tin, greeting
705(b), finds material injury or threat of
card or plush toy, or affixed (including
Termination of the Suspension of Liquidation
working component of such non-subject liquidation of which has been
the ITC’s notice of final determination,
701(a).’’ In addition, section 706(b)(2) of
December 14, 2009 (i.e., the date of
Preliminary Determination) and the date
determination in the Federal Register.
subject merchandise, such as a ‘‘belly
the ITC’s final determination is threat-
band’’ around a pair of pajamas, a pair
the threat of material injury and is not
(13) Narrow woven ribbon(s) included published in the Federal Register,
a scrapbook kit, in which the individual
As a result of the ITC’s determination, Act and 19 CFR 351.211(b).
and in accordance with section 706(a)(1)
Ronald K. Lorentzen, Deputy Assistant Secretary for Import
(‘‘CBP’’) to assess, upon further
the kit does not exceed 48 linear inches,
[FR Doc. 2010–21978 Filed 8–31–10; 8:45 am]
included in the kit is on a spool, and the amount of the net countervailable
BILLING CODE 3510–DS–P
subsidy for all relevant entries of narrow
DEPARTMENT OF COMMERCE Patent and Trademark Office [Docket No.: PTO–P–2010–0055]
the ITC’s notice of final determination
Examination Guidelines Update:
in the Federal Register, and to require Developments in the Obviousness
a cash deposit for each entry of subject
Inquiry After KSR v.Teleflex Narrow Woven Ribbons With Woven Selvedge AGENCY: United States Patent and From the People’s Republic of China: Preliminary Affirmative Countervailing Duty Determination and Alignment of Final Countervailing Duty ACTION: Notice. Determination With Final Antidumping Duty Determination, 74 FR 66090 (December 14, 2009).
SUMMARY: The United States Patent and
The Department instructed CBP to discontinue
the suspension of liquidation on April 13, 2010, in
issuing an update (2010 KSR Guidelines
accordance with section 703(d) of the Act. Section
Update) to its obviousness guidelines
703(d) states that the suspension of liquidation
pursuant to a preliminary determination may not
remain in effect for more than four months.
hsrobinson on DSK69SOYB1PROD with NOTICES
Federal Register / Vol. 75, No. 169 / Wednesday, September 1, 2010 / Notices Guidelines Update highlights case law
The 2007 KSR Guidelines pointed out,
as had the Supreme Court in KSR, that
developed as a matter of internal Office
(Supreme Court) in KSR Int’l Co. v.
Graham v. John Deere, 383 U.S. 1, 17–
Teleflex Inc. These guidelines are
create any right or benefit, substantive
18 (1966) (scope and content of the prior
ordinary skill in the art; and secondary
obviousness. It remains true that ‘‘[t]he
on the 2010 KSR Guidelines Update.
personnel to follow this 2010 KSR Guidelines Update is neither appealable dependent on the facts of each case.’’
Sanofi-Synthelabo v. Apotex, Inc., 550
F.3d 1075, 1089 (Fed. Cir. 2008) (citing
Graham, 383 U.S. at 17–18 (1966)). As
reflected in the Manual of Patent
for the reasoning required to support an
DATES: Effective Date: This 2010 KSR Examining Procedure (MPEP), this 2010
obviousness determination, the 2007 KSR Guidelines Update addresses a
KSR Guidelines noted that the teaching-
suggestion-motivation (TSM) test was but one possible approach. The 2007 ADDRESSES: Comments concerning this 2010 KSR Guidelines Update may be
KSR Guidelines identified six other
sent by electronic mail message over the concepts discussed are grounded in
or submitted with existing Office policy as
used. The six other rationales identified
in the 2007 KSR Guidelines are: (1)
obviousness will be discussed in detail.
be submitted by mail, the Office prefers
FOR FURTHER INFORMATION CONTACT:
Laufer, Legal Advisors, Office of Patent
Circuit and precedential decisions of the (4) applying a known technique to a
predictable results; (5) obvious to try—
(571) 272–7754 or (571) 272–7726; by
identified, predictable solutions, with a
2. Principles of Obviousness and the Guidelines. In response to the Supreme
Court’s April 2007 decision in KSR, the
either the same field or a different one
SUPPLEMENTARY INFORMATION:
1. Introduction. The purpose of this
Federal Register and Official Gazette.
the Supreme Court in KSR Int’l Co. v.
U.S.C. 103 in View of the Supreme Teleflex Inc., 550 U.S 398 (2007) (KSR),
Court Decision in KSR International Co.
v. Teleflex Inc., 72 FR 57526 (Oct. 10,
2007), 1324 Off. Gaz. Pat. Office 23
Court of Appeals for the Federal Circuit
(Nov. 6, 2007) (2007 KSR Guidelines).
using one of the rationales suggested by
(Federal Circuit) since KSR. This body
The 2007 KSR Guidelines have been
incorporated in the MPEP. See MPEP
discussed in the 2007 KSR Guidelines,
2007). The purpose of the 2007 KSR Guidelines was to give Office personnel
necessary factual findings. However, the
2007 KSR Guidelines also stressed that
while the Graham inquiries and the
cases begin to clarify the contours of the Court’s instruction in KSR. The 2007
obviousness inquiry after KSR, and help KSR Guidelines also alerted Office
Supreme Court in KSR did not place any
considering rebuttal evidence submitted taken to formulate the line of reasoning.
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In other words, the KSR decision is not
to be seen as replacing a single test for
seven rationales listed in the 2007 KSR
decisions, as can be seen in a review of
Guidelines. See MPEP §§ 2141 and 2143 MPEP § 2144. This section provides
and appropriately supported. See MPEP
§ 2144.04. So, for example, automating a
condoned the use of particular examples duplication of parts, or purifying an old
policy that appropriate factual findings
sense or ordinary routine practice (e.g.,
should not be treated as per se rules, but
of the required factual findings, and in
response to the rejection a practitioner
KSR has long been a part of the patent
examination process. See MPEP § 2144.
Although the KSR approach is flexible (e.g., ‘‘art recognized equivalent,’’
‘‘structural similarity’’) without
including all required factual findings.
be applied, the 2007 KSR Guidelines
3. The Impact of the KSR Decision.
and MPEP § 2143 state: ‘‘The Supreme
applicability to the facts of the case at
Court in KSR noted that the analysis
foundational principles of Graham
coupled with its abrogation of the strict
§ 2143. In Ball Aerosol v. Limited Brands, 555 F.3d 984 (Fed. Cir. 2009),
instruction as to the need for an explicit
in the post-KSR era. Since it is now
analysis. The Federal Circuit explained,
as is consistent with the 2007 KSR
the only way to establish a prima facie Guidelines, that the Supreme Court’s
practitioners have been required to shift
constant in the aftermath of KSR. Guidelines, the Office acknowledged
[T]he analysis that ‘‘should be made
claimed invention by the prior art, lack
explicit’’ refers not to the teachings in the prior art of a motivation to combine, but to
wake of the KSR decision. That footnote
the court’s analysis * * *. Under the flexible
also stated that it was ‘‘not clear which
inquiry set forth by the Supreme Court, the
district court therefore erred by failing to take importance in view of the recognition in
their viability’’ after KSR. See 2007 KSR
account of ‘‘the inferences and creative
KSR of a variety of possible rationales.
Guidelines, 72 FR at 57,528 n.2. The
steps,’’ or even routine steps, that an inventor
motivation to combine related pieces from
Ball Aerosol, 555 F.3d at 993. The
Federal Circuit’s directive in Ball
prior art does not have to be expressly stated
Aerosol was addressed to a lower court,
issue in KSR involved the relatively
expressly or impliedly contained in the prior
art or it may be reasoned from knowledge
Office personnel are to continue to make vehicle pedal assemblies, the decision
generally available to one of ordinary skill in
appropriate findings of fact as explained was relevant only to such fields. The
the art, established scientific principles, or
legal precedent established by prior case law.
such a notion, stating that KSR applies
Aug. 2006) (citing five pre-KSR Federal
This court also declines to cabin KSR to the
ordinary skill in the art at the time of
‘‘predictable arts’’ (as opposed to the
‘‘unpredictable art’’ of biotechnology). In fact,
this record shows that one of skill in this
in which Office personnel may properly advanced art would find these claimed
‘‘results’’ profoundly ‘‘predictable.’’
In re Kubin, 561 F.3d 1351, 1360 (Fed.
pronouncement in KSR has at the same
When considering obviousness, Office Cir. 2009). Thus, Office personnel
personnel are cautioned against treating
viability of cases such as In re Lee, 277
any line of reasoning as a per se rule.
Lee appears to require a strict basis in
discussed in this 2010 KSR Guidelines
hsrobinson on DSK69SOYB1PROD with NOTICES
Federal Register / Vol. 75, No. 169 / Wednesday, September 1, 2010 / Notices Update provide Office personnel as well are not the focus of separate discussions problem which had suggested use of the as practitioners with additional
in this 2010 KSR Guidelines Update, it
examples of the law of obviousness. The will be noted that obviousness concepts
The case of In re Omeprazole Patent
purpose of the 2007 KSR Guidelines Litigation is one in which the claims in
invention is not obvious, and to provide selected cases. The cases included in
reinforce the idea, presented in the 2007 coatings to a drug in pill form for the
KSR Guidelines, that there may be more
factual scenario. The selected decisions
also illustrate the overlapping nature of
2010 KSR Guidelines Update to contrast the lines of reasoning that may be
employed to establish a prima facie case included two layers of coatings over the
of obviousness. Although the 2007 KSR Guidelines presented the rationales as
Guidelines Update in conjunction with
district court rejected Apotex’s defense
the 2007 KSR Guidelines (incorporated
recognize that real-world situations may that the patents were invalid for
into MPEP §§ 2141 and 2143) to provide require analyses that may not be so
a more complete view of the state of the
A. Combining Prior Art Elements. In
provides a ‘‘teaching point’’ for each
discussed case. The ‘‘teaching point’’
elements, identified as Rationale A, the
2007 KSR Guidelines quoted KSR and
of the case in this 2010 KSR Guidelines Update. Nor should any case in this
2010 KSR Guidelines Update be applied elements in the way the claimed new
or cited in an Office action solely on the invention does.’’ KSR, 550 U.S. at 401.
basis of what is stated in the ‘‘teaching
In view of the cases decided since KSR, Federal Circuit Cases. The impact of the elements in a known manner to obtain
Supreme Court’s decision in KSR can be predictable results is when the
had not been recognized in the prior art.
expenditure of time, effort, or resources
person of ordinary skill in the art would
district court’s decision that the claimed
rationales identified in the 2007 KSR
subcoatings for enteric drug formulation
been the subject of a significant number
of post-KSR obviousness decisions. The
well as practitioners are reminded of the
Example 4.1. In re Omeprazole Patent though the modification could have
Litigation, 536 F.3d 1361 (Fed. Cir.
2008). Teaching point: Even where a
different modification even if he or she
discussed in the 2007 KSR Guidelines
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the Federal Circuit stated that even if all
foam, friction between the strap and the
been taught by the prior art, the claims
maintain its position after pivoting. In
other words, the foam strap did not fall
apparent reason. This is not the same as
under the force of gravity to a position
adjacent to the heel of the base section.
Crocs serves as a reminder to Office
prior art is not a complete statement of
expectations of those of ordinary skill in Aqua Clog, which was a shoe that
the art, adding the subcoating would not corresponded to the base section of the
footwear of the ‘858 patent. The second
final product. Rather, the final product
flexible material. In the ITC’s view, the
predictable to a person of ordinary skill
the prior art Aqua Clog differed from the in the art. MPEP § 2143 A(3). If results
Federal Circuit stated that the prior art
DeMonte Fabricating Ltd., 550 F.3d
1356 (Fed. Cir. 2008). Teaching point: A
actually counseled against using foam as claimed invention is likely to be
a material for the heel strap of a shoe.
The record shows that the prior art would
prior art elements that would reasonably
actually discourage and teach away from the
use of foam straps. An ordinary artisan in
respective properties or functions after
because the prior art of record failed to
this field would not add a foam strap to the
foam Aqua Clog because foam was likely to
Sundance involved a segmented and
stretch and deform, in addition to causing
discomfort for a wearer. The prior art depicts
Example 4.2. Crocs, Inc. v. U.S. International Trade Commission, 598
F.3d 1294 (Fed. Cir. 2010). Teaching point: A claimed combination of prior
known in the prior art, the claims still
loose fit of the heel strap made the shoe
The case of Crocs, Inc. v. U.S. International Trade Commission is a
wearer’s foot. In the claimed footwear,
footwear was held by the Federal Circuit wearer’s foot only when needed to help
reposition the foot properly in the shoe,
person of ordinary skill in the art would
segments as taught by the first reference
obviousness issue were from Crocs’ U.S. desirable feature was a result of the
Patent No. 6,993,858, and were drawn to friction between the base section and
Thus, the Sundance case points out
foot opening of the upper, such that the
‘‘yielded more than predictable results.’’
Id. at 1310. Aguerre had taught that
prior art elements is that one of ordinary
Achilles portion of the wearer’s foot.
that allowed it to be in contact with the
respective properties or functions after
base section, and to pivot relative to the
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Federal Register / Vol. 75, No. 169 / Wednesday, September 1, 2010 / Notices Example 4.4. Ecolab, Inc. v. FMC
parameter disclosed in the Bender patent
Corp., 569 F.3d 1335 (Fed Cir. 2009).
with the PAA methods disclosed in FMC’s
KSR ‘‘directs [it] to construe the scope of
Id. If optimization of the application
analogous art broadly.’’ Wyers, slip. op.
prima facie obvious if an ordinarily
at 12. For these reasons, the court found
that Master Lock’s asserted references
outcome of the Ecolab case may well
elements and would have known how to have been different.
Example 4.5. Wyers v. Master Lock
In the case of Ecolab, Inc. v. FMC Co., No. 2009–1412, —F.3d—, 2010 WL
Corp., an ‘‘apparent reason to combine’’
in conjunction with the technical ability Teaching point: The scope of analogous
Graham inquiries, and also emphasized
the ‘‘expansive and flexible’’ post-KSR
‘‘deny factfinders recourse to common
sense.’’ Wyers, slip op. at 13 (quoting
KSR, 550 U.S. at 415 and 421). The
In the case of Wyers v. Master Lock Co., the Federal Circuit held that the
KSR and our later cases establish that the
reference had taught all of the elements
of the claimed invention, except for the
used to secure trailers to vehicles were
include recourse to logic, judgment, and
pressure limitation of ‘‘at least 50 psi.’’
common sense, in lieu of expert testimony
The court discussed two different sets * * *.
of claims in Wyers, both drawn to
Thus, in appropriate cases, the ultimate
inference as to the existence of a motivation
to combine references may boil down to a question of ‘‘common sense,’’ appropriate for
of a second reference that had taught the removable sleeve that could be placed
advantages of spray-treating at pressures over the shank of the hitch pin lock so of 20 to 150 psi when treating meat with that the same lock could be used with
Id. at 15 (citing Perfect Web Techs., Inc.
v. InfoUSA, Inc., 587 F.3d 1324, 1329
(Fed. Cir. 2009); Ball Aerosol, 555 F.3d
Disagreeing with the district court, the each of several prior art references
Federal Circuit stated that ‘‘there was an
sleeve and the external covering. Master pointed out that the need for different
additional bacteria off the meat surface.’’ elements, would have rendered the
pressure to improve the effectiveness of
analogous prior art. As to the reference
court concluded that it dealt specifically external seals were well-known means
with using a vehicle to tow a trailer, and to protect locks from contaminants. The
pressure and would have known how to endeavor as Wyers’ sleeve
disclosed in FMC’s patent are invalid as
retained their respective functions when
The court cited In re O’Farrell, 853 F.2d
person of ordinary skill. In Ecolab, the
Ecolab’s expert admitted that one skilled in observed that even if sealed padlocks
the art would know how to adjust application parameters to determine the optimum
although the Federal Circuit invoked the
parameters for a particular solution. The
question then is whether it would have been
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result’’ discussed in KSR refers not only
ordinary skill in the art at the time of
elements are capable of being physically including an advertisement (Damark) for
combined, but also that the combination a folding treadmill demonstrating all of
purpose. In this case, it was successfully spring, and a patent (Teague) with a gas
The key to supporting any rejection under
argued that Puno ‘‘teaches away’’ from a
35 U.S.C. 103 is the clear articulation of the
reason(s) why the claimed invention would
rigidity increases the likelihood that the
dual-action spring that reverses force as
KSR noted that the analysis supporting a
rendering the device inoperative for its
intended purpose. In fact, the reference
made explicit. The Court quoting In re Kahn,
pushing the bed closed at all times. The
(Fed. Cir. 2006), stated that ‘‘[R]ejections on
‘‘shock absorber’’ effect, but rather
required to open the bed from the closed
expressed concern for failure and stated
conclusory statements; instead, there must be some articulated reasoning with some
rational underpinning to support the legal
‘‘decrease[s] the chance of failure of the
because ‘‘it prevent[s] direct transfer of
interface.’’ Thus, the alleged reason to
Example 4.6. DePuy Spine, Inc. v.
of the screw—ran contrary to the prior
Medtronic Sofamor Danek, Inc., 567
art that taught that increasing rigidity
F.3d 1314 (Fed. Cir. 2009). Teaching point: Predictability as discussed in KSR failure. In view of this teaching and the addressed problems of supporting the
prior art, the Federal Circuit determined providing a stable resting position.
especially strong where the prior art’s
Circuit relating to failure by others and
directs one skilled in the art not to use
ordinary skill would have combined the the combination would not have been
satisfy the claim limitations as the dual-
B. Substituting One Known Element for Another. As explained in the 2007
used in spinal surgeries that included a
away from using single-action springs to
an element of a prior art invention. The
opening force provided by gravity. As to
would have been predictable. See MPEP were so broad as to encompass anything
that assists in stably retaining the tread
Example 4.7. In re ICON Health & Fitness, Inc., 496 F.3d 1374 (Fed. Cir.
to support a case of obviousness (i.e., is
modifications that one skilled in the art
The claimed invention in ICON was
storage position, including a gas spring
ICON is another useful example for
the upright structure to assist in stably
art. The art applied concerned retaining
In conducting its analysis, the Federal retaining the tread base in the storage
Circuit noted that the ‘‘predictable
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endeavor, it is necessary to consider the
Circuit noted that ‘‘[t]he asserted claims
simply substitute a resistive electrical
Web browser. At trial, the district court
device. Id. at 1344. In this case, the prior argued that the claimed invention
However, in ICON, the ‘‘treadmill’’
browser into a prior art auction system,
device. According to the Federal Circuit, skepticism by experts, copying, praise,
‘‘Teague and the current application
the references that taught the hand-held
both address the need to stably retain a
folding mechanism,’’ id. at 1378, and
because ‘‘nothing about ICON’s folding
complete a circuit for the generation of
Federal Circuit disagreed. It noted that
focus on treadmills,’’ id. at 1380.
known in the prior art.’’ Id. Finally, the
ICON is also informative as to the
solved by using the resistive electrical
coextensive with the claims at issue. For
combine. ‘‘Indeed, while perhaps not
determined that Muniauction’s evidence
dispositive of the issue, the finding that
also pertained to the prior art stationary
case to Leapfrog Enterprises, Inc. v.
Agrizap as ‘‘a textbook case of when the
Fisher-Price, Inc., 485 F.3d 1157 (Fed.
Cir. 2007), cited in the 2007 KSR
of familiar elements according to known Guidelines. The Leapfrog case involved
predictable results.’’ Id. Agrizap
here indicates a reason to incorporate its exemplifies a strong case of obviousness prior art mechanical children’s learning
teachings.’’ Id. at 1380–81.
device. In Leapfrog, the court had noted
ICON also makes clear that if the
device. Similarly in Muniauction,
must not ‘‘ignore the modifications that
generation of an electric charge was not
device borrowed from the prior art.’’ Id. Example 4.9. Muniauction, Inc. v.
Deutschland v. Lupin Ltd., 499 F.3d
Thomson Corp., 532 F.3d 1318 (Fed.
1293 (Fed. Cir. 2007). Teaching point: A
Woodstream Corp., 520 F.3d 1337 (Fed.
Cir. 2008). Teaching point: Because
Cir. 2008). Teaching point: Analogous
information, it would have been obvious artisan had reason to believe that some
The invention at issue in Muniauction claimed compound, and separating the
Agrizap involved a stationary pest
control device for electrocution of pests
In Aventis, the claims were drawn to
and the prior art stationary pest control
bid comprising a price and interest rate
possible for the interested buyer to bid
on a portion of the offering. The claimed the ramipril molecule are in the S rather
electrical switch was taught in two prior parameters to determine the best bid. It
operated on conventional Web browsers ramipril had been taught by the prior
whether the purified single stereoisomer
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lipophilicity, so a skilled artisan would
related drug enalapril (SSS enalapril) as
Eisai concerns the pharmaceutical
compound rabeprazole. Rabeprazole is a drug for treating stomach ulcers and
The Federal Circuit affirmed the district
upon consideration of all of the facts of
was no clear motivation in the prior art
particular opinion can have a contextual
motivation in the prior art to isolate 5(S) lansoprazole as a ‘‘lead compound.’’ The pharmaceutical chemist might use the ramipril ran counter to the Supreme
Court’s decision in KSR. The court
chemistry, the term ‘‘lead compound’’
Requiring an explicit teaching to purify the
5(S) stereoisomer from a mixture in which it
has a trifluoroethoxy substituent at the
is the active ingredient is precisely the sort
of rigid application of the TSM test that was
substituent. The trifluoro substituent of
modifications in order to improve potency, selectivity, or pharmacokinetic
Id. at 1301. The Aventis court also
parameters;’’ ‘‘[a] compound that
chemical cases, structural similarity can lipophilicity to the compound. The
which suggest its development;’’ and ‘‘a
ability of a person of ordinary skill to
prior art teachings. The Federal Circuit
also addressed the kind of teaching that
would be sufficient in the absence of an
the predictability of the result were not
expectation of similar properties in light Circuit did not find any sufficient
of the prior art can be sufficient, even
compound will have a particular utility.
The Federal Circuit in Eisai makes it
Obviousness based on structural similarity
involving so-called ‘‘lead compounds’’
thus can be proved by identification of some
motivation that would have led one of ordinary skill in the art to select and then
modify a known compound (i.e. a lead
lead compound: ‘‘Obviousness based on
compound) in a particular way to achieve the structural similarity thus can be proved
inquiry, KSR Int’l Co. v. Teleflex Inc., 550
skill in the art to select and then modify
U.S. 398, 127 S.Ct. 1727, 1739, 167 L.Ed.2d
705 (2007), the requisite motivation can come compound) in a particular way to
achieve the claimed compound.’’ Eisai,
necessarily be explicit in the art. See Aventis
533 F.3d at 1357. Thus, Office personnel
Pharma Deutschland GmbH v. Lupin, Ltd.,
499 F.3d 1293, 1301 (Fed. Cir. 2007). Rather
‘‘it is sufficient to show that the claimed and
prior art compounds possess a ‘sufficiently
Example 4.11. Eisai Co. Ltd. v. Dr. Reddy’s Labs., Ltd., 533 F.3d 1353 (Fed.
expectation,’ in light of the totality of the
Cir. 2008). Teaching point: A claimed
prior art, that the new compound will have
‘similar properties’ to the old.’’ Id. (quoting
Eisai, 533 F.3d at 1357. The prior art
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case to consider the question of whether emphasized that whether there was a
the Federal Circuit stated that if 2-pyr
issues, or other business considerations. expectation of success. Here there was
compound’’ merely exists. See Altana
might envision a suggestion in the prior
Pharma AG v. Teva Pharmaceuticals Procter & Gamble is also informative
USA, Inc., 566 F.3d 999, 1007 (Fed. Cir.
certain structurally defined moieties, or
reason ‘‘to select and modify a known
that no prima facie case of obviousness
Pharmaceutical, Inc. v. Mylan Labs, Inc., 520 F.3d 1358, 1364 (Fed. Cir.
analyze Procter & Gamble’s proffered
evidence countering the alleged prima
been predicted, then a prima facie case
Example 4.12. Procter & Gamble Co. facie case in some detail, thus shedding
v. Teva Pharmaceuticals USA, Inc., 566
F.3d 989 (Fed. Cir. 2009). Teaching point: It is not necessary to select a
The Federal Circuit noted in dicta that compound. As a second example, it
single compound as a ‘‘lead compound’’
even if a prima facie case of obviousness could be possible to view a claimed
trial, the witnesses consistently testified properly be found to have been obvious
A chemical compound was also found compound was effective, and that the
to be nonobvious in Procter & Gamble.
Procter & Gamble’s osteoporosis drug
Example 4.13. Altana Pharma AG v.
Teva Pharmaceuticals USA, Inc., 566
When Procter & Gamble sued Teva for effect, and was not lethal at the same
F.3d 999 (Fed. Cir. 2009). Teaching
Procter & Gamble’s earlier patents. The
risedronate, but instead taught thirty-six that would have rebutted an
with regard to osteoporosis. Teva argued claimed invention is shown to have
prior art of record, nor is it necessary for
the art, and no reason to modify it so as
court pointed out that little weight was
Federal Circuit in Altana involved a
to obtain risedronate. In addition, there
to be afforded to the commercial success motion for preliminary injunction and
because the competing product was also did not include a final determination of
and toxicity. Therefore the district court assigned to Procter & Gamble. However,
found that Teva had not made a prima
the Federal Circuit affirmed the district
instructive as to the issue of selecting a
facie case, and even if it had, it was
court’s conclusion that risedronate met
a long-felt, unsatisfied need. The court
rejected Teva’s contention that because
the competing drug was available before is the active ingredient in Altana’s
district court’s decision. The Federal
Circuit did not deem it necessary in this the invention satisfied. The court
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that it encodes where the skilled artisan
finding was not clearly erroneous.’’ Id. at expectation of success in deriving the
C. The ‘‘Obvious to Try’’ Rationale.
based on an ‘‘obvious to try’’ line of
KSR applies to all technologies, rather
reasoning has been explored extensively than just the ‘‘predictable’’ arts.
question of invalidity for obviousness in by the Federal Circuit in several cases
The Federal Circuit’s decision in In re
light of one of Altana’s prior patents.
since the KSR decision. The 2007 KSR Kubin was an affirmance of the Board’s
Guidelines explain, in view of the
decision in Ex parte Kubin, 83 USPQ2d
Supreme Court’s instruction, that this
1410 (Bd. Pat. App. & Interf. 2007), and
rationale is only appropriate when there the Board in turn had affirmed the
12. The district court found that one of
identified, predictable solutions to the
included in the 2007 KSR Guidelines. See 2007 KSR Guidelines, 72 FR at
57532. The claimed invention in Kubin
Obviousness of a chemical compound of success. The case law in this area is
in view of its structural similarity to a
developing quickly in the chemical arts, The claim stated that the nucleic acid
the art to select and modify the prior art
a specified protein. A prior art patent to
but did not disclose either the sequence
need not necessarily be explicitly found
decided since KSR have proved this fear isolated nucleic acid molecule.
supported the district court’s finding
to be applying the KSR requirement for
predictable solutions’’ in a manner that
Altana’s prior art patent claimed that its
expectations of those of ordinary skill in molecule could be isolated. In view of
Valiante’s disclosure of the polypeptide,
nature of the task faced by the courts—
isolating the nucleic acid molecule, the
compounds of Altana’s prior art patent
and likewise by Office personnel—when Board found that a person of ordinary
to be relevant during the prosecution of
to try argument: ‘‘The evaluation of the
opined that one of ordinary skill in the
Relying on In re Deuel, 51 F.3d 1552
understanding of how technical advance (Fed. Cir. 1995), Appellant argued that
it was improper for the Office to use the
science or technology.’’ Abbott Labs. v.
the prior art must point to only a single
Sandoz, Inc., 544 F.3d 1341, 1352 (Fed.
that a ‘‘restrictive view of the lead
suggesting a structurally similar nucleic
test similar to the teaching-suggestion-
acid molecule. Citing KSR, the Board
question, ‘‘including the characteristics
stated that ‘‘when there is motivation to
explicitly rejected in KSR * * *. The
of the science or technology, its state of
choices, the specificity or generality of
solutions, a person of ordinary skill has
admittedly preliminary—and found that the prior art, and the predictability of
results in the area of interest.’’ Id. Example 4.14. In re Kubin, 561 F.3d
1351 (Fed. Cir. 2009). Teaching point: A success, it is likely the product not of
common sense.’’ The Board noted that
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case fails to present the type of situation
contemplated by the Court when it stated
there were a limited number of methods thiazolidinediones (TZDs) marketed by
that an invention may be deemed obvious if
available to do so. The Board concluded Takeda as a treatment for Type 2
it was ‘‘obvious to try.’’ The evidence showed that it was not obvious to try.
reasonable expectation that at least one
would be successful. Thus, isolating the
Alphapharm had filed an Abbreviated rationale does not apply when the
was ‘‘the product not of innovation but
of ordinary skill and common sense.’’
The Board’s reasoning was substantially technical act of infringement of
However, it is important to note that in
the Kubin decision, the Federal Circuit
solutions to the recognized need, and no
held that ‘‘the Supreme Court in KSR
reasonable expectation of success. There
unambiguously discredited’’ the Federal
Circuit’s decision in Deuel, insofar as it
‘‘implies the obviousness inquiry cannot known compound identified as
‘‘compound b’’ would have produced
unsuitable as a starting point for further
‘obvious to try.’ ’’ Kubin, 561 F.3d at
research, and taught the skilled artisan
1358. Instead, Kubin stated that KSR
‘‘resurrects’’ the Federal Circuit’s own
wisdom in O’Farrell, in which ‘‘to
compound b as a lead compound. There compound b, there had been no
were a large number of similar prior art
predictability or reasonable expectation
of success associated with the particular
try,’ ’’ the Federal Circuit ‘‘outlined two
specifically identified in Takeda’s prior
classes of situations where ‘obvious to
that ‘‘hundreds of millions’’ were more
obviousness under § 103.’’ Kubin, 561
have been ‘‘obvious to try’’ would have
Pharmaceutical, Inc. v. Mylan Labs, Inc., 520 F.3d 1358 (Fed. Cir. 2008).
possibly arrived at a successful result,
Teaching point: Where the claimed anti-
the district court would have taught the
of research aimed at finding a new anti-
district court found no prima facie case
a prima facie case had been established,
‘‘obvious to try’’ was to explore a new
decision of the district court, citing the
reason for selecting a particular starting
particular form of the claimed invention need for a reason to modify a prior art
or how to achieve it. Id. (citing
Industries, Ltd. v. Alphapharm Pty.,
The KSR Court recognized that ‘‘[w]hen
Ltd., 492 F.3d 1350 (Fed. Cir. 2007).
there is a design need or market pressure to
solve a problem and there are a finite number
Teaching point: A claimed compound
of identified, predictable solutions, a person
convulsant. As in DePuy Spine, whether
of ordinary skill has good reason to pursue
was not obvious to try to obtain it from
technical grasp.’’ KSR, 127 S.Ct. at 1732. In
effective for its intended purpose is part
such circumstances, ‘‘the fact that a
lead compound for further investigation, combination was obvious to try might show
and the prior art taught away from using that it was obvious under § 103.’’ Id. That is
treatment, the prior art disclosed a broad
convulsant properties. Mylan’s defense
could have been selected as a lead compound
for further investigation. Significantly, the
closest prior art compound (compound b, the
Takeda is an example of a chemical
6-methyl) exhibited negative properties that
would have directed one of ordinary skill in
the art away from that compound. Thus, this
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anti-convulsant drug. The district court
Example 4.18. Sanofi-Synthelabo v.
Apotex, Inc., 550 F.3d 1075 (Fed. Cir.
was no apparent reason why a person of formulation to measure the ‘‘absolute
bioavailability’’ of the drug. Bayer added been obvious where the claimed
particular synthetic pathway that led to
to that of the enteric-coated formulation
expected to find that the enteric-coated
The case of Sanofi also sheds light on
the obvious to try line of reasoning. The
than the enteric-coated tablet. However,
claimed compound was clopidogrel, which is the dextrorotatory isomer of
environment (supporting the belief that an enteric coating would be necessary to thrombotic compound used to treat or
preserve bioavailability), the normal pill prevent heart attack or stroke. The
characterization, does not present a finite
(and small in the context of the art) number
the same bioavailability. Following this
obviousness * * *. KSR posits a situation
with a finite, and in the context of the art,
drospirenone in a normal pill, the basis
small or easily traversed, number of options
that would convince an ordinarily skilled
artisan of obviousness* * * . [T]his clearly is having ordinary skill in the art would
not the easily traversed, small and finite
have considered the prior art result that
number of alternatives that KSR suggested
might support an inference of obviousness.
Id. at 1364. Thus, Ortho-McNeil helps
would nevertheless absorb in vivo,
requirement in KSR for ‘‘a finite
number’’ of predictable solutions when
the D-isomer would have been prima
drospirenone isomerizes in vitro when
facie obvious over the known racemate. However, in view of the evidence of
‘‘finite’’ means ‘‘small or easily
traversed’’ in the context of the art in
district court found that any prima facie
question. As taught in Abbott, discussed shortcomings, and would have verified
above, it is essential that the inquiry be
the findings as suggested by a treatise on
testified that persons of ordinary skill in
which would have then showed that no enteric coating was necessary.
Example 4.17. Bayer Schering Pharma patent was invalid because the claimed exhibited different levels of therapeutic
A.G. v. Barr Labs., Inc., 575 F.3d 1341
(Fed. Cir. 2009). Teaching point: A
Circuit reasoned that the prior art would experts also agreed that the isomer with
likely have had greater toxicity. Sanofi
possibilities in a field unreduced by the
prior art. The prior art was not vague in
to have been productive, and experts for
both parties agreed that it was difficult
In Bayer the claimed invention was an either a normal pill or an enteric-coated invention. Nevertheless, when Sanofi
they had the ‘‘rare characteristic of
The prior art compound drospirenone large number of options does not in and
‘absolute stereoselectivity,’ ’’ whereby
was known to be a poorly water-soluble, of itself lead to a conclusion of
contraceptive effects. It was also known
significant toxicity, while the L-isomer
the art to a narrower set of options, then
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this record, the district court concluded
skill in the art to try a fan blade design
initial recipient list; resending e-mails
on the first attempt; and selecting a new
disagreed with United’s assessment that
possible choices exist, the obvious to try obvious based on an obvious to try
on ‘‘simple logic,’’ selecting a new list of
options for solving a problem must have on the first attempt. There had been no
been ‘‘known and finite.’’ Id. at 1339,
citing Abbott, 544 F.3d at 1351. In this
Bayer, there were art-based reasons to
recipient list, and no evidence that the
expect that both the normal pill and the
required by KSR, there were a ‘‘finite
Federal Circuit concluded that changing number of identified, predictable
obtained was not unexpected. In Sanofi, the sweep angle ‘‘would not have
solutions,’’ and that the obvious to try
presented itself as an option at all, let
in the art, prior to the separation of the
obvious to try.’’ Rolls-Royce, 603 F.3d at
The Federal Circuit in Perfect Web
1339. The decision in Rolls-Royce is a
obvious to try rationale can properly be
The district court had cited KSR for the
proposition that ‘‘[a] person of ordinary
creativity, not an automaton,’’ and found
Example 4.19. Rolls-Royce, PLC v.
that ‘‘the final step [of the claimed
United Technologies Corp., 603 F.3d
invention] is merely the logical result of
1325 (Fed. Cir. 2010). Teaching point: Technologies, Inc. v. InfoUSA, Inc., 587
‘try, try again.’ ’’ In affirming the district
Teaching point: Where there were a
finite. However, if the possible options
finite number of identified, predictable
were not either known or finite, then an
In Rolls-Royce the Federal Circuit
addressed the obvious to try rationale in sense may be used to support a legal
the context of a fan blade for jet engines. conclusion of obviousness so long as it
obviousness when it stated, ‘‘Common
inform the analysis of obviousness if explained with sufficient reasoning.’’ Perfect Web, 587 F.3d at 1328 (emphasis
obvious on the basis of an obvious to try provided a review of a number of
obvious in light of United’s application,
argument. In Perfect Web, the method
including In re Bozek, 416 F.2d 1385,
patent examiner may rely on ‘‘common
Each fan blade has three regions—an inner,
an intermediate, and an outer region. The
repeating the first three steps if a pre-
area closest to the axis of rotation at the hub
is the inner region. The area farthest from the
intended recipients had not received the without any specific hint or suggestion
center of the engine and closest to the casing
in a particular reference’’) and In re
surrounding the engine is the outer region.
Zurko, 258 F.3d 1379, 1383, 1385 (Fed.
The intermediate region falls in between. The district court’s determination on
intermediate region, and forward-leaning
Failure to meet a desired quota of e-mail sense’’ in a case in which ‘‘basic
the field of e-mail marketing. The prior
based on any evidence in the record’’).
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rebut the prima facie case of obviousness,
testimony was contrary to the inventors’
acknowledged in Perfect Web that the
Office personnel should specifically set forth
admissions in the specification, as well
the facts and reasoning that justify this
suggestion, or motivation required in In re Lee, 277 F.3d 1338, 1344 (Fed. Cir.
2002), is not an absolute requirement for exemplify the continued application of
an obviousness rejection in light of the
teachings of KSR. The Federal Circuit
Circuit and within the Office. Note that
explained that ‘‘[a]t the time [of the Lee
references.’’ However, Perfect Web went
on to state that even under Lee, common Therapeutics, Inc. v. Viacell, Inc., 491
F.3d 1342 (Fed. Cir. 2007). Teaching point: Even though all evidence must be that the claimed method would have
obviousness. Citing DyStar Textilfarben
worked. Absolute predictability is not a
GmbH v. C.H. Patrick Co., 464 F.3d
1356 (Fed. Cir. 2006), and In re Kahn,
441 F.3d 977 (Fed. Cir. 2006), two cases
predictability that one of ordinary skill
Court’s decision in KSR, the Federal
Circuit noted that although ‘‘a reasoned
The claims at issue in PharmaStem
generalizations’’ is required to use
result in patentability.’’ Id. at 1364.
Example 5.2. In re Sullivan, 498 F.3d
1345 (Fed. Cir. 2007). Teaching point:
5. Federal Circuit Cases Discussing Consideration of Evidence. Office
compositions for treatment of blood and obviousness, must be considered when
evidence that is timely presented by the
It was found to be an error in Sullivan
evidence submitted to rebut a prima
comprising F(ab) fragments used to treat
argument to demonstrate that the results obviousness or other grounds. On
appeal, the Federal Circuit reversed the
separate properties and utilities. There
such evidence should not be considered PharmaStem’s own specification
simply for its ‘‘knockdown’’ value;
Once the applicant has presented rebuttal
evidence, Office personnel should reconsider
effective at neutralizing the lethality of
any initial obviousness determination in
view of the entire record. See, e.g., In re Piasecki, 745 F.2d 1468, 1472, 223 USPQ 785, 788 (Fed. Cir. 1984); In re Eli Lilly & Co.,
in humans. On appeal of the examiner’s
rejection, the Board held that the claim
(Fed. Cir. 1990). All the rejections of record
reconstitution in mice. By extrapolation, the claimed composition were
accounted for in the prior art, and that
the composition taught by that prior art
of ordinary skill in the art at the time
rebuttal evidence for its ‘‘knockdown’’ value
against the prima facie case, Piasecki, 745
F.2d at 1473, 223 USPQ at 788, or summarily
dismiss it as not compelling or insufficient.
described in PharmaStem’s patents. The
If the evidence is deemed insufficient to
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considered the evidence to relate to the
the jury verdict, stating that in view of
See MPEP § 706(I) (‘‘The standard to be
Board had shown a prima facie case of
‘preponderance of the evidence’ test. In
nonobviousness verdict was sufficiently other words, an examiner should reject
a claim if, in view of the prior art and
Shure appealed to the Federal Circuit, evidence of record, it is more likely than
not that the claim is unpatentable.’’).
making a determination of patentability.
Example 5.4. Asyst Techs., Inc. v.
jury that the Carlisle reference taught an Emtrak, Inc., 544 F.3d 1310 (Fed. Cir.
2008). Teaching point: Evidence of
to fail. The declarations related to more
and long-felt need may be insufficient to
taught by Carlisle as being inside the ear overcome a prima facie case of
obviousness if the prima facie case is
testimony described as ‘‘rather sparse,
and lacking in specific details.’’ Id. at
a failure to link the commercial success
factor of its composition is the statement particular reasons why one skilled in
to combine the references.’’ Id. Finally,
tracking articles such as silicon wafers
the lethality of rattlesnake venom while
to the next in a manufacturing facility.
evidence that ‘‘the licensing fee for a
with a central control unit. The Federal
half immediately upon expiration’’ of
Hesser was that the prior art had taught
the use of a bus for this communication,
while the claims required a multiplexer.
Inc. v. Shure Inc., 600 F.3d 1357 (Fed.
that persons of ordinary skill in the art
Cir. 2010). Teaching point: Evidence
covering for the portion of a hearing aid
and the proffered evidence, and whether failed to consider the objective evidence
that is inserted into the ear canal. The
must always be withdrawn. See MPEP
of three different combinations of prior
the appropriate weight to be accorded to emphasizing that ‘‘Asyst’s failure to link
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of its invention that were not disclosed
Pfizer, Inc. v. Apotex, Inc., 480 F.3d
1348, 1372 (Fed. Cir. 2007); Ryko Mfg.
force of the evidence * * *.’’ Id. at 1316. Co. v. Nu-Star, Inc., 950 F.2d 714, 719–
20 (Fed. Cir. 1991); Newell Cos. v.
others in the field praising the invention Kenney Mfg. Co., 864 F.2d 757, 768
they are reminded that every question of
When considering obviousness, Office obviousness must be decided on its own
argument to be unavailing in view of the personnel should carefully weigh any
properly presented objective evidence of
prior art, stating that ‘‘[w]hile the
the prima facie case. If the asserted
drew praise as a solution to a felt need,
substitution of a multiplexer for a bus,
David J. Kappos, Under Secretary of Commerce for Intellectual
6. Conclusion. This 2010 KSR Property and Director of the United States
invention.’’ Id. The Federal Circuit also
Guidelines Update is intended to be
reiterated, citing pre-KSR decisions, that used by Office personnel in conjunction ‘‘as we have often held, evidence of
Appendix
The following table contains the cases set
always overcome a strong prima facie
the 2007 KSR Guidelines) to clarify the
out as examples in this 2010 KSR Guidelines
showing of obviousness.’’ Id. (citing
contours of obviousness after KSR. It
Update and the teaching points of the case.
Combining Prior Art Elements In re Omeprazole Patent Litigation, Even where a general method that could have been applied to make the claimed product was known and
within the level of skill of the ordinary artisan, the claim may nevertheless be nonobvious if the problem which had suggested use of the method had been previously unknown.
Crocs, Inc. v. U.S. Int’l Trade A claimed combination of prior art elements may be nonobvious where the prior art teaches away from the
claimed combination and the combination yields more than predictable results.
Sundance, Inc. v. DeMonte Fabri-
A claimed invention is likely to be obvious if it is a combination of known prior art elements that would rea-
sonably have been expected to maintain their respective properties or functions after they have been
Ecolab, Inc. v. FMC Corp., 569 A combination of known elements would have been prima facie obvious if an ordinarily skilled artisan
would have recognized an apparent reason to combine those elements and would have known how to do so.
Wyers v. Master Lock Co., No. The scope of analogous art is to be construed broadly and includes references that are reasonably perti-
nent to the problem that the inventor was trying to solve. Common sense may be used to support a
legal conclusion of obviousness so long as it is explained with sufficient reasoning.
DePuy Spine, Inc. v. Medtronic Predictability as discussed in KSR encompasses the expectation that prior art elements are capable of
being combined, as well as the expectation that the combination would have worked for its intended pur-
pose. An inference that a claimed combination would not have been obvious is especially strong where the prior art’s teachings undermine the very reason being proffered as to why a person of ordinary skill would have combined the known elements.
Substituting One Known Element for Another In re ICON Health & Fitness, Inc., When determining whether a reference in a different field of endeavor may be used to support a case of
obviousness (i.e., is analogous), it is necessary to consider the problem to be solved.
Agrizap, Inc. v. Woodstream Corp., Analogous art is not limited to references in the field of endeavor of the invention, but also includes ref-
erences that would have been recognized by those of ordinary skill in the art as useful for applicant’s purpose.
Thomson Because Internet and Web browser technologies had become commonplace for communicating and dis-
playing information, it would have been obvious to adapt existing processes to incorporate them for
Aventis Pharma Deutschland v. A chemical compound would have been obvious over a mixture containing that compound as well as other
compounds where it was known or the skilled artisan had reason to believe that some desirable property
of the mixture was derived in whole or in part from the claimed compound, and separating the claimed compound from the mixture was routine in the art.
Eisai Co. Ltd. v. Dr. Reddy’s Labs., A claimed compound would not have been obvious where there was no reason to modify the closest prior
art lead compound to obtain the claimed compound and the prior art taught that modifying the lead com-
pound would destroy its advantageous property. Any known compound may serve as a lead compound when there is some reason for starting with that lead compound and modifying it to obtain the claimed compound.
Procter & Gamble Co. v. Teva It is not necessary to select a single compound as a ‘‘lead compound’’ in order to support an obviousness
rejection. However, where there was reason to select and modify the lead compound to obtain the
claimed compound, but no reasonable expectation of success, the claimed compound would not have been obvious.
hsrobinson on DSK69SOYB1PROD with NOTICES
Federal Register / Vol. 75, No. 169 / Wednesday, September 1, 2010 / Notices Teva Obviousness of a chemical compound in view of its structural similarity to a prior art compound may be
shown by identifying some line of reasoning that would have led one of ordinary skill in the art to select
and modify a prior art lead compound in a particular way to produce the claimed compound. It is not necessary for the reasoning to be explicitly found in the prior art of record, nor is it necessary for the prior art to point to only a single lead compound.
The Obvious To Try Rationale In re Kubin, 561 F.3d 1351 (Fed. A claimed polynucleotide would have been obvious over the known protein that it encodes where the
skilled artisan would have had a reasonable expectation of success in deriving the claimed polynucleotide using standard biochemical techniques, and the skilled artisan would have had a reason to try to isolate the claimed polynucleotide. KSR applies to all technologies, rather than just the ‘‘predict-able’’ arts.
Takeda Chem. Indus. v. A claimed compound would not have been obvious where it was not obvious to try to obtain it from a
broad range of compounds, any one of which could have been selected as the lead compound for fur-
ther investigation, and the prior art taught away from using a particular lead compound, and there was no predictability or reasonable expectation of success in making the particular modifications necessary to transform the lead compound into the claimed compound.
Ortho-McNeil Pharmaceutical, Inc. Where the claimed anti-convulsant drug had been discovered somewhat serendipitously in the course of
research aimed at finding a new anti-diabetic drug, it would not have been obvious to try to obtain a
claimed compound where the prior art did not present a finite and easily traversed number of potential starting compounds, and there was no apparent reason for selecting a particular starting compound from among a number of unpredictable alternatives.
Bayer Schering Pharma A.G. v. A claimed compound would have been obvious where it was obvious to try to obtain it from a finite and
easily traversed number of options that was narrowed down from a larger set of possibilities by the prior
art, and the outcome of obtaining the claimed compound was reasonably predictable.
Sanofi-Synthelabo v. Apotex, Inc., A claimed isolated stereoisomer would not have been obvious where the claimed stereoisomer exhibits un-
expectedly strong therapeutic advantages over the prior art racemic mixture without the correspondingly expected toxicity, and the resulting properties of the enantiomers separated from the racemic mixture were unpredictable.
Rolls-Royce, PLC v. United Tech-
An obvious to try rationale may be proper when the possible options for solving a problem were known
and finite. However, if the possible options were not either known or finite, then an obvious to try ration-
ale cannot be used to support a conclusion of obviousness.
Perfect Web Techs., Inc. v. Where there were a finite number of identified, predictable solutions and there is no evidence of unex-
pected results, an obvious to try inquiry may properly lead to a legal conclusion of obviousness. Com-
mon sense may be used to support a legal conclusion of obviousness so long as it is explained with suf-ficient reasoning.
Consideration of Evidence PharmaStem Therapeutics, Inc. v. Even though all evidence must be considered in an obviousness analysis, evidence of nonobviousness
may be outweighed by contradictory evidence in the record or by what is in the specification. Although a
reasonable expectation of success is needed to support a case of obviousness, absolute predictability is not required.
In re Sullivan, 498 F.3d 1345 (Fed. All evidence, including evidence rebutting a prima facie case of obviousness, must be considered when
Hearing Components, Inc. v. Shure Evidence that has been properly presented in a timely manner must be considered on the record. Evi-
dence of commercial success is pertinent where a nexus between the success of the product and the
claimed invention has been demonstrated.
Asyst Techs., Inc. v. Emtrak, Inc., Evidence of secondary considerations of obviousness such as commercial success and long-felt need may
be insufficient to overcome a prima facie case of obviousness if the prima facie case is strong. An argu-ment for nonobviousness based on commercial success or long-felt need is undermined when there is a failure to link the commercial success or long-felt need to a claimed feature that distinguishes over the prior art.
[FR Doc. 2010–21646 Filed 8–31–10; 8:45 am]
BILLING CODE P
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