Gevo Inc. (GEVO: Quote) announced that the U.S. Patent Office and Trademark or USPTO has denied a petition by Butamax Advanced Biofuels, LLC which would have vacated the order granting Gevo's reexamination request of Butamax's U.S. Patent No. 7,851,188. In so doing, the USPTO simultaneously affirmed its original decision that all claims challenged by Gevo in the '188 patent remain rejected as unpatentable.
by RTT Staff Writer
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