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Patent applications and USPTO patent grants for Seng; Florin.The latest application filed is for "coumarin derivatives, process for their preparation, their use and thiazolyl acetic acid derivatives as intermediates".
Patent | Date |
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Coumarin derivatives, process for their preparation, their use and thiazolyl acetic acid derivatives as intermediates Grant 5,300,656 - Kuckert , et al. April 5, 1 | 1994-04-05 |
Polymer-bound dyes, process for their production and use Grant 5,030,697 - Hugl , et al. July 9, 1 | 1991-07-09 |
Dicyanoethylaryl derivatives and process for their preparation Grant 4,894,472 - Seng , et al. January 16, 1 | 1990-01-16 |
Process for the preparation of .beta.-aminoethyl ketones Grant 4,695,652 - Seng , et al. September 22, 1 | 1987-09-22 |
2-Mercaptoquinoxaline-di-N-oxide products and a method for their preparation Grant 4,033,960 - Seng , et al. July 5, 1 | 1977-07-05 |
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