On July 31, 2025, the US Patent & Trademark Office (PTO) issued a memo clarifying the requirements under 37 C.F.R. § 42.104(b)(4) for inter partes review (IPR) petitions. The memo emphasizes that petitioners must clearly...more
The US Court of Appeals for the Federal Circuit clarified that while applicant-admitted prior art (AAPA) may be cited as evidence of general background knowledge in inter partes review (IPR) proceedings, it cannot serve as...more
7/24/2025
/ Appeals ,
Article III ,
CAFC ,
Inter Partes Review (IPR) Proceeding ,
Obviousness ,
Patent Invalidity ,
Patent Litigation ,
Patent Trial and Appeal Board ,
Patents ,
Prior Art ,
Standing