Gevo Awarded Two Key Patents for Efficient Production of Isobutanol

The Wall Street Journal: MarketWatch
Sept. 13, 2011, 8:00 a.m. EDT

~ Sues Butamax and DuPont for Infringement ~

ENGLEWOOD, Colo., Sep 13, 2011 (BUSINESS WIRE) -- Gevo, Inc. /quotes/zigman/3670856/quotes/nls/gevo GEVO +0.58% , a renewable chemicals and advanced biofuels company, today received two patents from the United States Patent and Trademark Office ("USPTO") on important technologies that enable the low-cost, high-yield production of biobased isobutanol. The Company also filed a lawsuit against Butamax(TM) and its affiliate DuPont. The lawsuit charges that Butamax and Dupont infringe Gevo's two newly-issued patents.

Gevo was awarded U.S. Patent No. 8,017,375, "Yeast Organism Producing Isobutanol at a High Yield" ("PDC Patent"), and U.S. Patent No. 8,017,376, "Methods of Increasing Dihydroxy Acid Dehydratase Activity to Improve Production of Fuels, Chemicals, and Amino Acids" ("AFT Patent").

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