Federal Circuit limits IPR estoppel for ongoing reexaminations

David McCombs and Jonathan Bowser of Haynes Boone examine a recent Federal Circuit decision holding that IPR estoppel does ...
JD Supra

For Those Challenging a Patent’s Validity in an IPR, New Clarity on Which Arguments Can Later be Litigated in Court

Inter partes review—or “IPR”—has become a popular avenue for accused patent infringers to challenge the validity of a patent’s claims outside of federal court. Any interested party may file for IPR, ...
Reuters

Federal Circuit clarifies scope of IPR estoppel and resolves district court split in patent law

July 10, 2025 - Patent Trial and Appeal Board (PTAB) post-grant validity challenges — for example, inter partes review — are frequent components of a patent litigation strategy for defendants.