Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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US Patent 6132561 - Process for the solvent extraction for the radiolysis and dehalogenation of halogenated organic compounds in soils, sludges, sediments and slurries
US Patent Issued on October 17, 2000
Estimated Patent Expiration Date:
October 9, 2018Estimated 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:
October 9, 2018Estimated 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 process of extracting halogenated organic compounds, and particularly PCBs, from soil, sediment, slurry, sludge and dehalogenating the compounds contacting a contaminated soil sample with an extraction medium of a mixture of an alkane and a water miscible alcohol. The organic compounds dissolve in the extraction medium which is separated from the soil by passing water upwardly through the soil. The extraction medium floats to the surface of the water and is separated. Thereafter, the extraction medium containing the halogenated organic contaminants is subjected to ionizing radiation to radiolytically dehalogenate the compounds. | InventorsApplicationNo. 168894 filed on 10/09/1998US Classes:204/157.15, Processes of treating materials by wave energy250/253, GEOLOGICAL TESTING OR IRRADIATION588/17, Geological or extraterrestrial588/316, Dehalogenation using reactive chemical agents able to degrade (EPO/JPO)588/318, Detoxification by using acid or alkaline reagents (EPO/JPO)588/320, By oxidation; by combustion (EPO/JPO)588/406Containing halogen (EPO/JPO)Field of Search588/17, Geological or extraterrestrial204/157.15, Processes of treating materials by wave energy204/164, Electrostatic field or electrical discharge436/28, In situ testing250/253, GEOLOGICAL TESTING OR IRRADIATION422/186.04Electrostatic field or electrical dischargeExaminersPrimary: Gorgos, KathrynAssistant: Wong, Don Attorney, Agent or FirmUS Patent References4144152, Dehalogenation of halogenated compoundsIssued on: 03/13/1979 Inventor: Kitchens4842448, Method of removing contaminants from contaminated soil in situ Issued on: 06/27/1989 Inventor: Koerner , et al.5311566, In-situ x-ray treatment of organically contaminated material Issued on: 05/10/1994 Inventor: Curry, et al.5512253, Irradiator apparatus Issued on: 04/30/1996 Inventor: Woodbridge, et al.5561065, Method for testing earth samples for contamination by organic contaminants Issued on: 10/01/1996 Inventor: Schabron5799257Process for gamma ray induced degradation of polychlorinated biphenyls Issued on: 08/25/1998 Inventor: Meikrantz, et al. International ClassesC07C 001/00A62D 003/00 G01V 005/00 |
