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New York law firm Fitzpatrick, Cella, Harper announced that it has filed patent lawsuits on behalf of four clients defending three drug patents — Sankyo for its hypertension drug Benicar, Eisai for its Alzheimer’s disease drug Aricept and Wyeth and Altana for their heartburn drug Protonix.
The board of directors of Bristol-Myers Squibb (BMS) announced that an internal probe has unearthed no evidence the company engaged in illegal conduct while it and sanofi-aventis negotiated a patent settlement with Apotex over their blockbuster blood thinner Plavix.
Seattle-based biotechnology company ZymoGenetics has filed a patent suit against Bristol-Myers Squibb (BMS), asking the court to halt sales of BMS’ rheumatoid arthritis drug Orencia because it infringes on certain technology patents owned by ZymoGenetics.
Sanofi-aventis and Bristol-Myers Squibb (BMS) have asked a U.S. federal court for a preliminary injunction to stop Apotex from selling its generic version of their blockbuster blood thinner Plavix, but a patent agreement they signed with Apotex may prevent them from getting it, according to one legal expert.
A federal appeals court has affirmed a lower court decision that an anemia drug co-developed by Aventis Pharmaceuticals and Transkaryotic Therapies (TKT) infringes on Amgen’s patents for its anemia drug Epogen.
The patent settlement between sanofi-aventis, Bristol-Myers Squibb (BMS) and Apotex designed to prevent the sale of generic Plavix has been abandoned by all parties at the same time it became the focus of a federal antitrust investigation.
Pfizer got a partial victory in the legal battle over its patent of atorvastatin — the active ingredient in Pfizer’s cholesterol drug Lipitor — when a U.S. appeals court upheld the exclusivity of the main patent covering atorvastatin. However, the court struck down a second patent covering the crystalline form of atorvastatin that is sold as Lipitor, Pfizer said Aug. 2.
Sanofi-aventis is being subpoenaed by a grand jury in connection with a Department of Justice (DOJ) criminal investigation regarding its proposed patent settlement with Apotex, the company said in a July 31 regulatory filing.
Canadian drugmaker Apotex has been sued by Unigene Laboratories and Upsher-Smith Laboratories for allegedly infringing on the patent for their postmenopausal osteoporosis nasal spray Fortical.