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Patent applications and USPTO patent grants for Hepfer; Robert P..The latest application filed is for "process for the production of aromatic carboxylic acids in water".
Patent | Date |
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Process for the Production of Aromatic Carboxylic Acids in Water App 20090118536 - Tibbitt; James M. ;   et al. | 2009-05-07 |
Reactor apparatus Grant 7,442,345 - Trott , et al. October 28, 2 | 2008-10-28 |
Two-stage process for the hydrogenation of maleic acid to 1,4-butanediol Grant 6,989,455 - Hepfer , et al. January 24, 2 | 2006-01-24 |
Reactor apparatus App 20050002837 - Trott, Louis R. ;   et al. | 2005-01-06 |
Two-stage process for the hydrogenation of maleic acid to 1,4-butanediol App 20040039213 - Hepfer, Robert P. ;   et al. | 2004-02-26 |
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