Carlsbad-based Verdezyne, the venture backed developer of biofuels technology, said today that it has been granted a United States Patent. The firm said the patent, No. 8,093,037, covers its engineered microorganisms used to enable yest to ferment sugar in cellulosic feedstocks. The organisms are used in converting its feedstocks into ethanol and other products. According to the U.S. Patent and Trademark Office, inventors on the patent are Stephen Picataggio, the firm's Chief Scientific Officer; Kirsty Anne Lily Salmon; and Jose Miguel LaPlaza. The patent was filed on March 11, 2011. Verdezyne was represented by Grant Anderson LLP in the filing. Verdezyne is venture backed by BP Alternative Energy Ventures, DSM Venturing B.V., OVP Venture Partners and Monitor Ventures.