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Sepracor

Sepracor Announces Patent Interference Proceedings and Schedule Against Wyeth for Claims Related to O-desmethylvenlafaxine Succinate Marketed as PRISTIQ®

Published in Medical Patent Law Weekly, May 6th, 2009

Sepracor Inc. (Nasdaq: SEPR) announced that the Board of Patent Appeals and Interferences (BPAI) of the U.S. Patent and Trademark Office has combined three patent interferences into a single interference between Sepracor and Wyeth and set a date for oral arguments. The interference seeks to determine the priority of inventorship of claims directed to racemic O-desmethylvenlafaxine (ODMV) succinate. Wyeth markets racemic ODMV succinate in the U.S. under the brand name PRISTIQ® for the treatment of major depressive disorder in adults.

The interference is between Wyeth’s U.S. patents 6,673,838 and 7,291,347, the two patents listed in the FDA’s publication entitled Approved...

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