Tag Archive: estoppel

Dec 23

IPR Estoppel Narrowed Even Further in D. Delaware Ruling

Despite the astounding success for patent challengers to date in IPR proceedings, are you one who has been worried about the effects of the IPR estoppel in future litigation? Has this concern dissuaded you from considering filing an IPR in the past? Fear no more, another decision from a federal court has taken a severely narrow …

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Aug 27

More Fun with the One-Year Time Bar of § 315(b)

The nuances of the time bar of 35 U.S.C. § 315(b) continue to be explored in various IPR decisions.  In Amneal Pharmaceuticals, LLC v. Endor Pharmaceuticals Inc., IPR2014-00360, Paper 15, Patent Owner asserted that the Petition for Inter Partes Review was time-barred under § 315(b) because Petitioner received an amended complaint in co-pending litigation, asserting the …

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