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Collateral Estoppel Bars Assertion of Patent Claims That Do Not “Materially Alter the Question of Invalidity” Relative to Claims...

On April 4, 2019, Chief Judge Patti Saris of the United States District Court for the District of Massachusetts held in Intellectual Ventures I, LLC v. Lenovo Group Ltd. that a final determination of invalidity in inter...more

Federal Circuit Denies RPX’s Request for en banc Review in Applications in Internet Time v. RPX

Continuing our coverage of the Federal Circuit’s Applications in Internet Time, LLC v. RPX Corp. (“Internet Time”) decision, on Tuesday, October 23, 2018, the Federal Circuit denied RPX’s request to rehear the case en banc....more

PTAB Finds Recycled Art and Advanced State of Parallel District Proceeding Warrant Denial of IPR Trial

Last week the Patent Trial and Appeal Board (“PTAB”) provided yet another arrow in the patent owner’s quiver for defending against institution of IPRs. In NHK International Corp. v. Intri-Plex Technologies, Inc.,...more

RPX Requests en banc Review in Applications in Internet Time v. RPX

On September 7, 2018, RPX Corporation (“RPX”) requested a rehearing en banc of the Federal Circuit’s July 2018 Applications in Internet Time, LLC v. RPX Corp. decision, which held that the Patent Trial and Appeal Board...more

Federal Circuit Holds that the Petitioner Bears the Burden to Show All Real Parties in Interest are Properly Named in a Petition...

Late last week, in Worlds, Inc. v. Bungie, Inc., the Federal Circuit held that the Patent Trial and Appeals Board (“Board”) must place the burden of persuasion on the Petitioner to show it has named all real parties in...more

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