Portland-based surgical dressing maker HemCon wins appeal in patent case OregonLive.com By Elliot Njus, The Oregonian HemCon Medical Technologies Inc., the Portland maker of shrimp-derived bleeding-control dressings, won a key appeal in a patent infringement lawsuit filed by a Massachusetts maker of a similar product. .. . HemCon wins appeal of $29M judgment HemCon Medical Technologies Wins Patent Judgment Appeal |