Stented Balloon Catheter Claims Found Invalid and Noninfringed

September 30, 2015 – A federal jury found that all asserted claims of a patent for a balloon catheter incorporating a non-deployable stent were invalid for obviousness and were not infringed by an angioplasty catheter developed by a founder of the patentee.  Plaintiff AngioScore previously prevailed on its claim that its founder developed the accused catheter with Defendant Trireme Medical while he was a member of AngioScore’s board, in breach of the founder’s fiduciary duty to AngioScore.

The patent-in-suit is U.S. Patent No. 7,691,119, titled “Balloon Catheter With Non-Deployable Stent.”  The case is captioned Angioscore, Inc. v. Trireme Medical, Inc., Case No. 4:12-cv-03393, in the U.S. District Court for the Northern District of California.

By: Sean C. McDonagh