The Supreme Court agreed on Friday, November 4, 2022, to review the standard for enablement of genus claims after the Federal Circuit’s decision in Amgen, Inc. v. Sanofi. We have previously covered Amgen’s petition for a writ of certiorari and the multiple amicus curiae briefs submitted in the case. As detailed below, the Supreme
Jennifer P. Nock
Regeneron Disclaims an Aflibercept Formulation Patent in Response to Celltrion PGR
On March 14, 2022, Regeneron Pharmaceuticals Inc. (“Regeneron”) filed a statutory disclaimer under 37 CFR § 1.321 disclaiming all claims of U.S. Patent No. 10,857,231 B2 (the “’231 patent”) in response to a petition for a post-grant review submitted by Celltrion Inc. (“Celltrion”). On September 7, 2021, Celltrion submitted a petition for post-grant review of…
PTAB Institutes a Second IPR on Rituxan®-related ’821 Patent
The PTAB recently instituted a second IPR of US Patent 9,296,821 (“the ’821 patent”), which covers certain uses of Rituxan® (rituximab), a monoclonal antibody marketed by Genentech and Biogen Pharmaceuticals. The ‘821 patent claims methods of treating low grade or follicular non-Hodgkin’s lymphoma (NHL) by administering rituximab during a chemotherapeutic regimen of cyclophosphamide, vincristine, and…
Immunex Loses Battle Over Institution of Follow-on IPR Petitions
Sanofi-Aventis U.S. LLC, Genzyme Corporation, and Regeneron Pharmaceuticals, Inc. recently scored a victory in their ongoing dispute over a patent that Immunex Corporation claims covers Dupixent®, Sanofi and Regeneron’s anti-IL-4 antibody marketed for treatment of moderate-to-severe eczema. In February, the Patent Trial and Appeal Board (“the Board”) instituted two petitions for inter partes…
The Supreme Court’s Decision in Amgen v. Sandoz: Clear Guidance and Open Questions for Biosimilars
As we previously reported here, earlier this year the Supreme Court agreed to hear its first case arising under the Biosimilars Price Competition and Innovation Act (“BPCIA”) in the cases of Sandoz v. Amgen and Amgen v. Sandoz. Our earlier post provides the factual background on this case, which involves Sandoz’s application to…