GreenShift Corporation Announces Major Ruling in Litigation over Corn Oil Extraction Patents
Feb 10 13
GreenShift Corp. announced the issuance of a significant ruling in its ongoing prosecution of ethanol producers and other entities for infringement of GreenShift's patented corn oil extraction processes, including U.S. Patent Nos. 7,601,858, 8,008,516, 8,008,517, and 8,283,484. According to a release, GreenShift believes that the ruling strengthens its case for infringement against any person or entity recovering or facilitating the recovery of corn oil from the concentrated thin stillage by-product of ethanol producers. All of the following defendants in GreenShift's current litigation argued that GreenShift's patents are limited to the recovery of at least 95% of the oil present in the concentrated thin stillage feed stream, and that they are consequently not infringing on GreenShift's patents because they are recovering less than 95% of the oil present in their concentrated thin stillage feed streams: (1) Ace Ethanol; (2) Al-Corn Clean Fuel; (3) Blue Flint Ethanol; (4) Bushmills Ethanol; (5) Chippewa Valley Ethanol; (6) Heartland Corn Products; (7) Lincolnway Energy; (8) United Wisconsin Grain Producers; (9) Iroquois Bio-Energy Company; (10) Cardinal Ethanol; (11) ICM; (12) Big River Resources West Burlington; (13) Adkins Energy; (14) Big River Resources Galva; (15) Lincolnland Agri-Energy and (16) David Vander Griend. The Court disagreed with the defendants' arguments, the company said, and issued a Supplemental Claim Construction Order clarifying that the patents do not require recovery of any particular percentage of oil present in the syrup feed stream. Significantly, the Court ruled that most of GreenShift's patent claims cover mechanical processing to recover a product that is largely or mostly oil, and that they are not limited by the amount of oil that is not recovered from the concentrated thin stillage stream.