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
Following the Celltrion and Pfizer settlements of the trastuzumab litigation, the Federal Circuit granted the request of the Director of the PTO to intervene under 35 U.S.C. § 143 (i.e., defend a PTAB decision when a...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
The PTAB remains a busy venue for biologics patents. Here are some IPR updates from the weeks since our last IPR update...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
The PTAB has been a busy place for biologics patents in the past few weeks. Here are some of the highlights...more
Pfizer, Inc. has filed two petitions (IPR2017-01488 and IPR2017-01489) challenging claims of U.S. Patent No. 6,407,213 (“the’213 patent”). According to the petitions, the ’213 patent is directed to methods of making humanized...more
Earlier this week, Celltrion filed two petitions for inter partes review of Genentech’s U.S. Patent No. 6,407,213. According to Celltrion’s petitions, the patent is directed to humanized antibodies. ...more
Celltrion has filed two additional petitions for inter partes review of Genentech patents related to trastuzumab: IPR2017-01139, challenging U.S. Patent 6,627,196, and IPR2017-01140, challenging U.S. Patent 7,371,379....more
Celltrion has filed petitions for inter partes review of two patents related to Genentech’s trastuzumab: IPR2017-01121, challenging U.S. Patent 7,846,441, and IPR2017-01122, challenging U.S. Patent 7,892,549. According to...more
Celltrion has filed three petitions for IPR of Biogen’s patents related to rituximab: IPR2017-01093, challenging U.S. Patent 8,329,172; IPR2017-01094 challenging U.S. Patent 8,557,244; and IPR2017-01095 challenging U.S....more
The PTAB has granted Celltrion’s petition for inter partes review of Biogen’s U.S. Patent 7,820,161. (IPR2016-01614) The patent is drawn to methods of treating rheumatoid arthritis by administration of rituximab. ...more
Celltrion has filed a petition for inter partes review (IPR2017-00959) of Genentech’s U.S. Patent 8,591,897. According to the petition, the patent is directed to methods of treating a sub-type of breast cancer with a regimen...more