Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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US Patent 5110319 - Process for extracting ethanol from fermentation broths for direct blending into gasoline while preserving the broth for recycling
US Patent Issued on May 5, 1992
Estimated Patent Expiration Date:
June 13, 2010Estimated 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.
Estimated Patent Expiration Date:
June 13, 2010Estimated 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.AbstractA method of producing ethanol from a fermentation source for direct blending into gasoline to form gasohol is provided by extracting ethanol from the fermentation broth with a non-toxic solvent compatible with gasoline. The invention includes extraction outside of the fermentor and the recycling of the extracted broth back to the fermentor. An extracting column is used for the extraction and recycling and the extract can be dried before blending it with the gasoline. The preferred solvent is an alkylate.Other References
| InventorsAssigneeApplicationNo. 537131 filed on 06/13/1990US Classes:44/451, Alkanol203/44, Of distillate435/7.1, Involving antigen-antibody binding, specific binding protein assay or specific ligand-receptor binding assay435/161, Ethanol435/942, Saccharomyces cerevisiae568/913Purification or recoveryField of Search44/451, Alkanol203/44, Of distillate435/161, Ethanol568/913Purification or recoveryExaminersPrimary: Medley, MargaretAttorney, Agent or FirmUS Patent References2182550, 4251231, Direct process for the production of gasohol from fermentation mixturesIssued on: 02/17/1981 Inventor: Baird4297172, Low energy process of producing gasoline-ethanol mixtures Issued on: 10/27/1981 Inventor: Kyle4402792, Apparatus for producing alcohol fuel Issued on: 09/06/1983 Inventor: Horst , et al.4425137, Alcohol and fuel production Issued on: 01/10/1984 Inventor: Roth4441891, Gasoline-aided production of alcohol and fuel Issued on: 04/10/1984 Inventor: Roth4517298Process for producing fuel grade ethanol by continuous fermentation, solvent extraction and alcohol separation Issued on: 05/14/1985 Inventor: Tedder International ClassC10L 001/02 |
