Japanese Takeda Pharmaceutical Co., Asia’s biggest drug maker, has sued Teva Pharmaceutical Industries Ltd., alleging infringement of US 6,034,239. for the insomnia treatment Rozerem.
Takeda,are suing for unspecified damages and a court injunction against infringing sales by Teva in a complaint filed today on Friday 6th November 2009 in federal court in Wilmington, Delaware.
Takeda alleges that Teva infringed the patent by seeking approval from the U.S. Food and Drug Administration to sell copies of the sleeping pills, The patent may be renewed until 2017.
Teva apparently contends the validity of the Takeda patent because the claimed invention is obvious.
The case is: Takeda Pharmaceutical Co. Ltd. v. Teva Pharmaceuticals USA Inc., 09CV841, U.S. District Court, District of Delaware (Wilmington).
Posted by Dr Michael Factor 
