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Patent applications and USPTO patent grants for Tonhauser; Juergen.The latest application filed is for "use of vinyl phosphonic acid for producing biodegradable mixed polymers and the use thereof for exploring and extracting petroleum and natural gas".
Patent | Date |
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Use Of Vinyl Phosphonic Acid For Producing Biodegradable Mixed Polymers And The Use Thereof For Exploring And Extracting Petroleum And Natural Gas App 20110263465 - Kayser; Christoph ;   et al. | 2011-10-27 |
Fluid loss control additives for foamed cement compositions and associated methods App 20070101905 - Chatterji; Jiten ;   et al. | 2007-05-10 |
Fluid loss control additives for foamed cement compositions and associated methods App 20070105995 - Chatterji; Jiten ;   et al. | 2007-05-10 |
Water-soluble copolymers and their use for exploration and production of petroleum and natural gas Grant 6,395,853 - Oswald , et al. May 28, 2 | 2002-05-28 |
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