ALEXANDRIA, Va., July 16 -- United States Patent no. 12,358,856, issued on July 15, was assigned to Amyris Inc. (Emeryville, Calif.).

"Compositions and methods for the purification of isoprenoids" was invented by Greg Oniel Buchanan (Emeryville, Calif.), Wilson Chau (Emeryville, Calif.), Binita Bhattacharjee (Emeryville, Calif.), Anthony Spizuoco (Emeryville, Calif.) and Liza Lopez (Emeryville, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides compositions and methods for producing a high-purity isoprenoid from an isoprenoid composition, wherein the method includes using chromatography to reduce the impurities in the isoprenoid composition to below parts per million levels...