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Use Caution When Considering Multiple IPRs Against a Single Patent

The recent PTAB order in IPR2017-01427 is a cautionary tale for petitioners considering multiple IPRs against a single patent. On May 11, 2017, Facebook and WhatsApp filed the ’1427 IPR petition challenging claims 1-8 of U.S....more

PTAB Recognizes Limits to Eleventh Amendment Sovereign Immunity

In a pair of near identical decisions issued on December 19, 2017, an expanded PTAB panel found that the Regents of the University of Minnesota had waived its defense of sovereign immunity by filing actions against the...more

District Court deference to PTAB regarding priority claim? Not necessarily.

In instituting IPR of a particular patent, the PTAB found that the patent was not entitled to its priority claim, thus opening it up to invalidity attacks. However, because the PTAB’s decision was not being challenged in the...more

Federal Circuit to PTAB – No 102 Gap Filling

In a precedential opinion dated March 14, 2017, the Federal Circuit reversed the PTAB, holding that in finding a claim anticipated under 35 USC § 102, the Board cannot “fill in missing limitations” simply because a skilled...more

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