• Stem Cell Therapeutics Corp., of Calgary, Alberta, said it received U.S. Patent No. 7,994,131, titled "Stimulation of Proliferation of Pluripotent Stem Cells through Administration of Pregnancy Associated Compounds." It relates to the use of human chorionic gonadotropin to treat patients presenting with damaged or diseased heart cells.• Trophos SA, of Marseille, France, was granted U.S. Patent No.