On July 14, 2025, Fresenius Kabi filed IPR2025-01268 against Regeneron’s U.S. Patent No. 11,084,865 (“the ’865 patent”) and IPR2025-01269 against U.S. Patent No. 10,828,345 (“the ’345 patent”), both relating to EYLEA®...more
Earlier this month, a Patent Trial and Appeal Board (“PTAB”) panel denied institution of two petitions that were filed separately by Samsung Bioepis (IPR2025-00176) and Formycon (IPR2025-00233) for inter partes review (“IPR”)...more
On April 15, 2025, Biocon announced it reached a settlement agreement with Regeneron, dismissing CAFC Appeal No. 24-2002 and Case No. 1:22-cv-00061 (N.D.W. Va.) / MDL 1:24-md-03103 (N.D.W. Va.) and allowing the...more
On January 15, 2025, Celltrion filed IPR2025-00456 against Regeneron’s U.S. Patent No. 11,084,865 (“the ’865 patent”), challenging claims 1-17, 19-42, 44-50 as anticipated and claims 1-50 as obvious....more
On November 20, 2024, Samsung Bioepis filed IPR2025-00176 against Regeneron’s U.S. Patent No. 11,084,865 (“the ’865 patent”), challenging as obvious 48 claims (claims 1-12, 14-17, 19-20, 22-36, 39-42, 44-45, and 47-55)...more
There have been several recent developments in the PTAB with respect to Regeneron’s aflibercept-dosing patents. On July 8, Regeneron voluntarily dismissed its appeals to the Federal Circuit (Case Nos. 2023-1395 and...more
As we settle into 2024, we reflect on the significant legal developments of 2023 that hold potential impact on the biologics and biosimilars market. The following is a recap of some of the top five legal decisions and...more
On August 18, Samsung Bioepis Co., Ltd. (“Samsung Bioepis”), filed a petition for Inter Partes Review, IPR2023-01312, challenging the validity of claims 1-18 of U.S. Patent No. 10,464,992, assigned to Regeneron...more
We previously reported on the opening post-trial briefs in Regeneron’s BPCIA case against Mylan and Biocon (who was added as a defendant after the original defendant, Mylan, transferred its rights to the aflibercept...more
Last week, Samsung Bioepis filed an IPR petition challenging claims of U.S. Patent No. 11,253,572 (“the ’572 patent”), owned by Regeneron Pharmaceuticals. According to the petition, the claims are directed to the use...more
Celltrion and Samsung recently filed IPR petitions challenging claims of Regeneron patents directed to treating angiogenic eye disorders with aflibercept. Specifically, Celltrion and Samsung have each filed petitions...more
Last week, Celltrion filed an IPR petition, PTAB IPR2023-00462, seeking cancellation of claims 1-18 of U.S. Patent No. 10,464,992 (“the ’992 patent”), assigned to Regeneron Pharmaceuticals, Inc. According to the Petition, the...more
On October 26, 2021, the Patent Trial and Appeal Board (PTAB) granted Regeneron’s petition to institute an inter partes review (IPR) of Novartis’s patent U.S. Pat. No. 9,220,631 (“the ’631 patent”), which covers a pre-filled...more
This week Sanofi-Aventis and Regeneron Pharmaceuticals took aim at Amgen’s U.S. Patent No. 8,679,487 on two fronts, filing a declaratory judgment action in district court and a petition for inter partes review in the U.S....more