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Patent applications and USPTO patent grants for Howlett; Richard Martin.The latest application filed is for "lubricating oil containing reaction products of polyisobutylphenol, esters of chloroacetic acid, and ethylene polyamine".
Patent | Date |
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Lubricating oil containing reaction products of polyisobutylphenol, esters of chloroacetic acid, and ethylene polyamine Grant 4,083,791 - Elliott , et al. April 11, 1 | 1978-04-11 |
Lubricating oil containing alkanoic amide or ester-bridged hydrocarbyl substituted phenols Grant 4,051,049 - Elliott , et al. September 27, 1 | 1977-09-27 |
Lubricant additives, their preparation and compositions containing them Grant 3,966,807 - Elliott , et al. June 29, 1 | 1976-06-29 |
Methylene bis-phenol alkanoic acid compounds Grant 3,954,808 - Elliott , et al. May 4, 1 | 1976-05-04 |
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