Tuesday, January 27, 2015 10:08:06 AM
Teva Pharmaceuticals also clarifies the distinction between the “factual” and “legal” determinations underlying the claim construction process. Citing Markman, the Supreme Court reaffirmed that the ultimate question in claim construction—the meaning of a claim term in a patent—is a question of law and will continue to be reviewed de novo.7 Likewise, when a district judge reviews only evidence intrinsic to the patent (the claims, specifications, and prosecution history) in construing a claim term, this amounts to solely a legal determination that will also be reviewed de novo.When a trial judge, however, must look beyond the intrinsic evidence to extrinsic evidence such as expert opinion on the general meaning of a certain term of art at the time of the invention, the trial judge’s findings on that matter are factual findings that, under Rule 52, can only be reviewed for “clear error.”9 - See more at: http://www.senniger.com/article-details.aspx?article=3847&articlegroup=667#sthash.FImTfUW3.dpuf
http://www.senniger.com/article-details.aspx?article=3847&articlegroup=667
Yet, compare with Judge CHEN dissenting opinion:
CHEN, Circuit Judge, dissenting.
"After a twelve-day trial during which both sides presented
evidence about the teachings of the prior art, the
jury made detailed factual findings pertaining to the
obviousness of the ’420 and ’664 patents. The jury found,
among other findings, that elements of the asserted
claims were not present in the prior art. Based on the
jury’s findings, the district court determined that the
Defendants had failed to prove by clear and convincing
evidence that the asserted claims were obvious. In reversing
the district court’s judgment, the majority finds
that the prior art discloses a key claim limitation that the
jury found was missing, and also concludes that the
district court erred in failing to use “common sense” to
bridge the differences between the prior art and the
claims. In my view, the majority fails to accord sufficient
deference to the jury’s findings of fact. Moreover, I find
that the majority’s use of common sense to bridge the gap
between the prior art and the claims is unsupported by
sufficient evidence and reasoning. I respectfully dissent."
http://www.vringoip.com/documents/FG/vringo/ip/261352_CAFC_Dissenting_Opinion.pdf
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