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
As the era of biologics and biosimilar litigations heats up in the United States, Europe’s Unified Patent Court (UPC) is also taking center stage with the first two biosimilar disputes filed in March and April....more
On February 12, 2024, Chugai, Genentech, and Hoffmann-La Roche filed a motion for voluntary dismissal of their appeals of the PTAB’s Final Written Decisions in IPR2022-00578 and IPR2022-00579. The appeals concerned...more
On August 29, 2023, the PTAB issued final written decisions in IPR2022-00578 and IPR2022-00579, filed by Celltrion on two patents related to tocilizumab — U.S. Patent Nos. 8,580,264 and 10,874,677, owned by Chugai Seiyaku...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
On July 19 and 20, 2023, the PTAB granted institution of IPR2023-00442, filed by Samsung Bioepis regarding Regeneron’s Patent No. 10,130,681 which is directed to treating angiogenic eye disorders with alibercept, and...more
On March 10, 2023, the PTAB denied institution of IPR2022-1524, filed by Apotex Inc. regarding Regeneron’s Patent No. 11,253,572. As we previously reported, Apotex filed an IPR petition against the ’572 patent in...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
The U.S. Patent Trials & Appeals Board (Board) recently issued an Order granting Celltrion’s motion to submit supplemental information in its IPR (2022-00578) against U.S. Pat. No. 8,580,264, owned by Chugai Seiyaku...more
On August 31, 2022, the PTAB instituted two inter partes reviews of Chugai and Roche’s tocilizumab patents challenged by Celltrion, adding to the growing list of IPRs instituted against the tocilizumab patent estate....more
There are presently seven biosimilar-related appeals pending before the Federal Circuit. Two of those appeals, Amgen v. Sandoz (Case No. 18-1551) and Amgen v. Coherus (Case No. 18-1993), are from district court judgments in...more
About the PTAB Life Sciences Report: Each month we will report on developments at the PTAB involving life sciences patents. Sun Pharmaceuticals Industries, Ltd. v. Novartis AG - PTAB Petition: IPR2017-01929; filed...more