DuPont Unit Sued Over Biofuel IP In Ongoing Gevo Feud

Law360, New York (April 10, 2012, 3:54 PM EDT) -- Sustainable fuel company Gevo Inc. on Tuesday sued DuPont Co. affiliate Butamax Advanced Biofuels LLC for patent infringement in Delaware federal court, the latest suit in a running battle over technology and processes for producing isobutanol fuel.

Butamax, which is a joint venture between DuPont and British oil giant BP PLC, kicked off the patent dispute in 2011, filing a suit alleging Gevo infringed it's “pioneer” method for producing the fuel, which is created through the fermentation of biomass.

With Gevo's filing Tuesday, the two companies...
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