Colorado-based Gevo says patent infringement suit filed by Butamax Advanced Biofuels without merit, will fight allegations

ENGLEWOOD, Colorado , August 11, 2011 (press release) – Gevo, Inc. (NASDAQ: GEVO), a renewable chemicals and advanced biofuels company, believes that the patent infringement suit that Butamax™ Advanced Biofuels, LLC filed on August 9, 2011 in U.S. District Court in the District of Delaware is without merit. Gevo will continue to aggressively defend its freedom to operate. The new lawsuit asserts infringement of Butamax’s newly issued U.S. Patent No. 7,993,889, which stems from the same application as the patent that Butamax asserted in a pending lawsuit, filed on January 14, 2011. The new suit will be consolidated with the existing case.

Pat Gruber, CEO of Gevo states: “We are the leaders in the technology and commercialization of low-cost isobutanol. Unfortunately, lawsuits like this are typical disputes that leaders face. We will vigorously challenge these patents and Butamax’s infringement allegations. We believe that these disputes will eventually reveal the superiority of Gevo’s innovations in this field. We will continue to lead, keeping the focus on the production of low-cost isobutanol, deploying our technology, and securing additional off-take agreements.”

About Gevo

Gevo is converting existing ethanol plants into biorefineries to make renewable building block products for the chemical and fuel industries. The Company plans to convert renewable raw materials into isobutanol and renewable hydrocarbons that can be directly integrated on a "drop in" basis into existing chemical and fuel products to deliver environmental and economic benefits. Gevo is committed to a sustainable biobased economy that meets society's needs for plentiful food and clean air and water. For more information, visit

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