Fermentation method producing ethanol
Patent 4568644 Issued on February 4, 1986. Estimated Expiration Date: 
August 13, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 13, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesProcesses for the manufacture of D(-)-3-hydroxybutyric acid and D(-)-3-hydroxybutyric acid producing mutants Use of co-cultures in the production of ethanol by the fermentation of biomass Patent #: 4400470 InventorsApplicationNo. 06/640247 filed on 08/13/1984US Classes:435/161, Ethanol435/252.7, Clostridium435/441, Mutation employing a chemical mutagenic agent435/444, By use of alkylating agent (e.g., nitrosoguanidine, etc.)435/446, Mutation employing radiation or electricity435/448, Ultraviolet irradiation435/842ClostridiumExaminersPrimary: Bashore, S. LeonAssistant: Hastings, Karen M. Attorney, Agent or FirmInternational ClassesC12P 7/02 (20060101)C12P 7/06 (20060101) AbstractEthanol is the major end product of an anaerobic, thermophilic fermentation process using a mutant strain of bacterium Clostridium thermosaccharolyticum. This organism is capable of converting hexose and pentose carbohydrates to ethanol, acetic and lactic acids. Mutants of Clostridium thermosaccharolyticum are capable of converting these substrates to ethanol in exceptionally high yield and with increased productivity. Both the mutant organism and the technique for its isolation are provided.Other References
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