Indefiniteness Before the PTAB
IMMUNOGEN, INC. v. STEWART - Before Lourie, Dyk, and Prost. Appeal from the United States District Court for the Eastern District of Virginia. A solution to a problem can be obvious even when the problem itself was unknown in...more
On May 17, 2024, an Appeals Review Panel (ARP) of the United States Patent and Trademark Office (“USPTO”) released its decision in Ex parte Chamberlain (referred to in Federal Circuit proceedings as In re Xencor;...more
On April 1, 2024 the Federal Circuit released its opinion in Janssen Pharmaceuticals, Inc. et al v. Teva Pharmaceuticals USA, Inc. et al., affirming the district court’s finding that certain claims were not indefinite and...more
Case Name: Janssen Pharms., Inc. v. Teva Pharms. USA, Inc., No. 18-cv-734, 2021 WL 5323737 (D.N.J. Nov. 16, 2021) (Cecchi, J.) Drug Product and Patent(s)-in-Suit: Invega Sustenna® (paliperidone palmitate); U.S. Patent No....more
A split Federal Circuit panel recently upheld the district court’s judgment of invalidity and noninfringement because the phrase “consisting essentially of” rendered the asserted claims indefinite and the proposed ANDA label...more
Under the U.S. Patent laws, claims must particularly point out and distinctly claim what the inventor understands her invention to be. Up until three years ago, the inquiry for determining indefiniteness was to ask whether...more