On June 3, 2022, the PTAB instituted inter partes review of U.S. Patent No. 9,750,752 (“the ’752 patent”), owned by Chugai and Roche. Fresenius filed a petition for inter partes review of claims 1-16 of the ‘752 patent, directed to methods of treating giant cell arteritis by subcutaneously administering tocilizumab. …
On April 14, 2022, the U.S. Court of Appeals for the Federal Circuit reversed the PTAB’s determination in IPR2016-01542 that claims of Amgen’s U.S. Patent No. 8,952,138 are obvious. The ’138 patent claims are directed to methods of refolding proteins by “contacting the protein with a refolding buffer comprising a…
On March 15, 2022, the Patent Trial and Appeal Board (PTAB) denied institution of post-grant review (PGR) proceedings initiated by Celltrion Inc. concerning Regeneron Pharmaceutical’s U.S. Patent No. 10,857,231 (the ’231 Patent) after Regeneron disclaimed the patent. The ’231 patent has claims directed to formulations of aflibercept, the active ingredient…
On March 3, 2022, the PTAB instituted another inter partes review of U.S. Patent Nos. 8,580,264 (“the ’264 patent”), owned by Chugai and Roche. Fresenius filed a petition for inter partes review of the ‘264 patent, challenging claims 4, 5, and 12, directed to methods of treating rheumatoid arthritis by…
Earlier this week, the PTAB instituted inter partes review of two patents directed to methods of treating rheumatoid arthritis by subcutaneously administering tocilizumab and devices for subcutaneously administering tocilizumab, respectively. Fresenius filed petitions for inter partes review of U.S. Patent Nos. 8,580,264 (“the ’264 patent”), owned by Chugai and Roche,…
On September 10, 2021, Janet Woodcock, the acting FDA Commissioner of Food and Drugs at the FDA, sent a letter to Andrew Hirshfield, Under Secretary of Commerce for Intellectual Property and Director of the United States Patent and Trademark Office (USPTO) “pursuant to Executive Order 14036, and in the hope…
On March 26, 2021, the PTAB issued its Final Written Decision in Mylan Pharmaceuticals, Inc. v. Sanofi-Aventis Deutschland GMBH, IPR2019-01657, which involved Sanofi’s Patent RE47,614 (“’614 patent”) relating to its LANTUS (insulin glargine) product. The PTAB ruled in favor of Mylan and held all 18 claims invalid for obviousness in view…
As we previously reported, in October 2018, Pfizer persuaded the Patent Trial and Appeal Board (PTAB) that the claims of Biogen’s U.S. Patent No. 8,821,873, directed to a method of treating lymphoma with anti-CD20 antibodies and covering the cancer therapeutic RITUXAN (rituximab), were unpatentable on obviousness grounds. After appealing to…
As previously reported, in February 2019, the Patent Trial and Appeal Board issued final written decisions in two IPR proceedings initiated by Sanofi challenging the U.S. Patent No. 8,679,487 (the ’487 patent) owned by Immunex. In IPR2017-01884, the Board held that the challenged claims of the ‘487 patent were unpatentable…
As we previously reported, Mylan filed a number of IPR petitions challenging a total of seven of Sanofi-Aventis’s patents related to Lantus® (insulin glargine injection). On May 29, 2020, the PTAB issued Final Written Decisions in eight of Mylan’s pending petitions concerning four patents finding most of the challenged claims…