Plano’s Argon Medical wins patent case over vein filter

A Plano-based medical device company prevailed in a court battle against one of the world’s largest patent-holding companies in a dispute over a filter and delivery technique that claims to give physicians more control when performing procedures that involve a vein that delivers blood back to the heart. Argon Medical Inc., based in Plano, and Rex Medical LP, based in in Conshohocken, Pennsylvania, won a jury verdict of non-infringement in a patent trial against a non-practicing entity called EVM…