Appeal 2007-1809
Application 09/774,013
Discussing the question of obviousness of a patent that claims a
combination of known elements, the Court in KSR Int’l v. Teleflex, Inc., 127
S. Ct. 1727, 82 USPQ2d 1395 (2007) explains:
When a work is available in one field of endeavor, design
incentives and other market forces can prompt variations
of it, either in the same field or a different one. If a
person of ordinary skill can implement a predictable
variation, §103 likely bars its patentability. For the same
reason, if a technique has been used to improve one
device, and a person of ordinary skill in the art would
recognize that it would improve similar devices in the
same way, using the technique is obvious unless its
actual application is beyond his or her skill. Sakraida [v.
AG Pro, Inc., 425 U.S. 273, 189 USPQ 449 (1976)] and
Anderson's-Black Rock[, Inc. v. Pavement Salvage Co.,
396 U.S. 57, 163 USPQ 673 (1969)] are illustrative—a
court must ask whether the improvement is more than the
predictable use of prior art elements according to their
established functions.
KSR, 127 S. Ct. at 1740, 82 USPQ2d at 1396. If the claimed subject matter
cannot be fairly characterized as involving the simple substitution of one
known element for another or the mere application of a known technique to
a piece of prior art ready for the improvement, a holding of obviousness can
be based on a showing that “there was an apparent reason to combine the
known elements in the fashion claimed.” Id., 127 S. Ct. at 1740-41,
82 USPQ2d at 1396. Such a showing requires “some articulated reasoning
with some rational underpinning to support the legal conclusion of
obviousness. . . . [H]owever, the analysis 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.” Id., 127 S. Ct. at 1741, 82 USPQ2d
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