REDWOOD CITY, Calif.--(BUSINESS WIRE)--Codexis, Inc. (Nasdaq:CDXS), a developer of cost-advantaged processes for the production of biofuels, bio-based chemicals, and pharmaceutical intermediates, today announced that the United States Patent and Trademark Office (USPTO) has granted Codexis’ patent covering the biocatalysts and biocatalytic processes used to make key pharmaceutical intermediates in the synthesis of leading hepatitis-C therapeutics.