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Chemical Week Magazine :: Business & Finance :: United States/Americas

Gevo wins round in patent fray; Butamax plans appeal

11:51 AM MDT | April 1, 2013 | —Rebecca Coons

A Delaware judge has ruled that Gevo (Englewood, CO) does not infringe two Butamax Advanced Biofuels patents describing methods for the production of biobased isobutanol—the latest development in a two-year patent spat that has seen both sides file multiple infringement suits. According to Gevo, the judgment of noninfringement comes on the heels of the court’s claim construction determination, which held that Butamax’s patent numbers 7,851,188 and 7,993,889 require the use of an “NADPH-dependent” KARI enzyme. “This is an outstanding victory for...

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