Biostar says new patents strengthen market position

BOULDER — BioStar Inc., which recently announced a merger with Denver-based Cortech Inc., has been granted four new patents by the U.S. Patent and Trademark Office and through the Patent Cooperation Treaty.

The four patents, the company said, strengthen the proprietary position of BioStar’s Optical ImmunoAssay technology by increasing the total number of U.S. patents to 15 and the total number of international patents issued under the treaty to six. Each patent granted by

the treaty is the basis for individual national patents.

One international patent, Biostar…