December 16, 2013
A Delaware federal judge on Monday refused Gevo Inc.'s bid to dismiss BP PLC and DuPont Co. joint venture Butamax Biofuels LLC's counterclaims in their ongoing patent battle over ethanol-alternative biofuel, saying a dispute still exists between the companies despite Gevo's covenant not to sue Butamax for use of certain products.
June 13, 2012
A joint venture of DuPont Co. and BP PLC won a court order from a Delaware federal judge Tuesday temporarily stopping rival Gevo Inc. from filling new orders for isobutanol as the companies continue their legal fight over patents on the biofuel technology.
April 10, 2012
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.