Butamax asks USPTO to reexamine foundational Gevo “GIFT” patent
In Delaware, Butamax Advanced Biofuels announced that it is requesting that the United States Patent and Trademark Office reexamine the Gevo “GIFT” Patent No. 8,101,808. This patent has 156 claims that relate to recovery of alcohols from fermentation. The request for reexamination cites critical references not reviewed by the USPTO prior to the patent being […]









