Late Terminal Disclaimer Was Too Late?
2009-1032 Boehringer Ingelheim v. Barr Labs
D/NJ 05-Cv-700 and 05-Cv-854
Judge Joseph J. Farnan, Jr.
An interesting appeal concerning the interplay of terminal disclaimers, restrictions, and patent extensions. The case involves efforts to market a generic version of pramipexole dihydrochloride, FDA approved for the treatment of idiopathic Parkinson's disease and Restless Leg Syndrome (RLS). Defendants alleged that the asserted '812 patent was invalid for non-statutory double-patenting based on Boehringer's related '086 patent, which expired in 2006.
During trial and just before closing arguments, Boehringer filed a terminal disclaimer for the '812 patent, disclaiming the statutory term after expiration of the '086 patent. It then argued that this not only avoided the double-patenting defense but also that the '812 was still in force due to an extension to that patent's term under § 156. The Court disagreed, finding the terminal disclaimer ineffective and that the asserted claims of the '812 were invalid. Aaron Barkoff at the Orange Book Blog previously wrote about the district court's decision here.
Oral argument is scheduled for Monday, June 1, 2009 at 1:00 P.M., Courtroom 402.



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