In IOENGINE, LLC v. Ingenico Inc. (Fed. Cir. 2025), the Federal Circuit narrowed the scope of IPR estoppel under 35 U.S.C. § 315(e)(2), which precludes an IPR petitioner from asserting in court that a patent claim “is invalid...more
[co-author: Jamie Dohopolski] Last year, the continued global COVID-19 pandemic forced American courts to largely continue the procedures set in place in 2020. The U.S. Court of Appeals for the Federal Circuit was no...more
When filing an IPR, petitioners should be careful not to take for granted one of the most fundamental aspects of challenging validity in this forum: Whether or not the relied upon references qualify as prior art. Pursuant to...more
A Central District of California judge recently granted summary judgment of no obviousness based on inter partes review (IPR) estoppel because the only prior art references used to challenge patent validity could have been...more
In a Final Written Decision in Johns Manville Corp. v. Knauf Insulation, Inc., IPR2016-00130, Paper 35 (P.T.A.B. May 8, 2017), the PTAB found that petitioner Johns Manville (JM) was not estopped from raising its own company...more