August 25, 2011

Bio-butanol patent fight continues

The blog has been following the biobutanol patent issues between Butamax and Gevo since August 9. Last week, however, Gevo announced its request to the US Patent and Trademarked Office (USPTO) to invalidate Butamax's patent 7,851,188 issued on December 2010, which covers biocatalysts that Butamax developed to produce isobutanol.

Gevo is also filing a second petitiion with the USPTO to invalidate Butamax's patent 7,993,889 which was granted on August 9. This patent covers methods for low-cost production of biobutanol.


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