CAFC Affirms PTAB’s Decision That Printed Matter Doctrine Can Be Used In Claim Construction

By Reza Mollaaghababa In an inter partes review proceeding, a challenger cannot raise patent-eligibility as a ground of invalidity.  Rather, the invalidity grounds are limited to lack of novelty and obviousness.  Notwithstanding, in construing claim terms, the PTAB can decide not to give patentable weight to certain claim limitations that are not patent-eligible. In Praxair … Continue reading CAFC Affirms PTAB’s Decision That Printed Matter Doctrine Can Be Used In Claim Construction

CAFC Finds Another PTAB Claim Construction Unreasonable and Again Reverses an Invalidity Holding

By Reza Mollaaghababa In an inter partes review (IPR) proceeding, the meaning of terms used in challenged claims of an unexpired patent are given their broadest reasonable interpretation in light of the claim language and the specification. The Court of Appeals for the Federal Circuit (CAFC) recently reversed the Board’s interpretation of a claim term … Continue reading CAFC Finds Another PTAB Claim Construction Unreasonable and Again Reverses an Invalidity Holding

Fed. Circuit Affirms PTAB’S CBM Decision Based on a Ground Not Raised By Petitioner

By Reza Mollaaghababa In SightSound Technologies, LLC v. Apple, Inc. (CBM2013-00020), the Court of Appeals for the Federal Circuit (the patent appellate court) recently affirmed the decision of Patent Trial and Appeal Board (PTAB) to invalidate certain claims of SightSound’s patents 5,191,573 and 5,966,440 in a covered business method (CBM) proceeding based on an obviousness … Continue reading Fed. Circuit Affirms PTAB’S CBM Decision Based on a Ground Not Raised By Petitioner