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Patent applications and USPTO patent grants for Himmel; Thomas William.The latest application filed is for "polyamide emulsifier based on polyamines and fatty acid/carboxylic acid for oil based drilling fluid applications".
Patent | Date |
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Polyamide emulsifier based on polyamines and fatty acid/carboxylic acid for oil based drilling fluid applications Grant 8,765,644 - Yu , et al. July 1, 2 | 2014-07-01 |
Polyamide Emulsifier Based on Polyamines and Fatty Acid/Carboxylic Acid for Oil Based Drilling Fluid Applications App 20110306523 - Yu; Hua ;   et al. | 2011-12-15 |
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