Appeal 2007-0403
Application 10/440,859
V. PRINCIPLES OF LAW
Under 35 U.S.C. § 103, the factual inquiry into obviousness requires a
determination of: (1) the scope and content of the prior art; (2) the
differences between the claimed subject matter and the prior art; (3) the level
of ordinary skill in the art; and (4) secondary consideration (e.g., the
problem solved). Graham v. John Deere Co. of Kansas City, 383 U.S. 1,
17-18, 148 USPQ 459, 467(1966). “[A]nalysis [of whether the subject
matter of a claim is obvious] need not seek out precise teachings directed to
the specific subject matter of the challenged claim, for a court can take
account of the inferences and creative steps that a person of ordinary skill in
the art would employ.” KSR Int’l v. Teleflex, Inc., 127 S. Ct. 1727, 1740-41,
82 USPQ2d 1385, 1396 (2007) quoting In re Kahn, 441 F.3d 977, 988, 78
USPQ2d 1329, 1336-37 (Fed. Cir. 2006); see also DyStar Textilfarben
GmBH & Co. Deutschland KG v. C.H. Patrick Co., 464 F.3d 1356, 1361, 80
USPQ2d 1641, 1645 (Fed. Cir. 2006)(“The motivation need not be found in
the references sought to be combined, but may be found in any number of
sources, including common knowledge, the prior art as a whole, or the
nature of the problem itself.”); In re Bozek, 416 F.2d 1385, 1390, 163 USPQ
545, 549 (CCPA 1969)(“Having established that this knowledge was in the
art, the examiner could then properly rely, as put forth by the solicitor, on a
conclusion of obviousness ‘from common knowledge and common sense of
the person of ordinary skill in the art without any specific hint or suggestion
in a particular reference.’”); In re Hoeschele, 406 F.2d 1403, 1406-07, 160
USPQ 809, 811-812 (CCPA 1969) (“[I]t is proper to take into account not
only specific teachings of the references but also the inferences which one
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