U.S. Patent Office Issues Human BioSystems Patent # 7,202,020- “Compositions, Methods and Apparatuses for Preserving Platelets”

PALO ALTO, CALIFORNIA -- (MARKET WIRE) -- May 10, 2007 -- Human BioSystems (HBS) (OTCBB: HBSC), developer of preservation platforms for organs, blood platelets and other biomaterials, announced in a press release dated January 22, 2007 that the U.S. Patent Office will allow the Company’s fifth patent. The U.S. Patent Office has now issued patent number 7,202,020 to HBS for this patent entitled “Compositions, Methods and Apparatuses for Preserving Platelets.”