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Patent applications and USPTO patent grants for Wijesekera; Tilak P..The latest application filed is for "method for removal of acetol from phenol".
Patent | Date |
---|---|
Method for removal of acetol from phenol Grant 7,034,192 - Wijesekera April 25, 2 | 2006-04-25 |
Method for removal of acetol from phenol Grant 7,002,048 - Wijesekera , et al. February 21, 2 | 2006-02-21 |
Method for removal of acetol from phenol App 20050215834 - Wijesekera, Tilak P. | 2005-09-29 |
Method for removal of acetol from phenol App 20050215835 - Wijesekera, Tilak P. ;   et al. | 2005-09-29 |
Wells-Dawson type heteropolyacids, their preparation and use as oxidation catalysts Grant 6,169,202 - Wijesekera , et al. January 2, 2 | 2001-01-02 |
Catalysts for hydroxylation and ammination of aromatics using molecular oxygen as the terminal oxidant without coreductant Grant 5,981,424 - Durante , et al. November 9, 1 | 1999-11-09 |
Synthetic route to meso-tetra hydrocarbyl or substituted hydrocarbyl porphyrins and derivatives Grant 5,241,062 - Wijesekera , et al. August 31, 1 | 1993-08-31 |
Porphyrins and uses thereof Grant 5,077,394 - Dolphin , et al. December 31, 1 | 1991-12-31 |
Porphyrins Grant 4,892,941 - Dolphin , et al. January 9, 1 | 1990-01-09 |
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