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Business

Gevo And Butamax Continue Dispute

by Marc S. Reisch
March 12, 2012 | A version of this story appeared in Volume 90, Issue 11
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Biofuels maker Gevo says the U.S. Patent & Trademark Office has rejected a “foundational patent,” No. 7,851,188, held by Butamax Advanced Biofuels covering isobutyl alcohol-producing yeasts. Butamax, a joint venture between DuPont and BP, says that patent and other patents remain in effect, and that PTO has only granted a request for reexamination. Butamax is currently suing the Englewood, Colo.-based start-up for patent infringement and says a trial is set for April 2013.

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