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Patent applications and USPTO patent grants for Tresch; Rainer.The latest application filed is for "azoxy dyes and copper complexes thereof".
Patent | Date |
---|---|
Bisazo dyestuffs based on hydroxynaphthalene carboxylic acid Grant 6,933,371 - Schroder , et al. August 23, 2 | 2005-08-23 |
Azoxy dyes and copper complexes thereof Grant 6,903,197 - Tresch , et al. June 7, 2 | 2005-06-07 |
Triarylmethane dyes Grant 6,846,956 - Kast , et al. January 25, 2 | 2005-01-25 |
Azoxy dyes and copper complexes thereof App 20040204570 - Tresch, Rainer ;   et al. | 2004-10-14 |
Preparation of liquid formulations of basic azo dyes Grant 6,743,901 - Schmitt , et al. June 1, 2 | 2004-06-01 |
Azoxy dyes and their Cu complexes Grant 6,727,351 - Tresch , et al. April 27, 2 | 2004-04-27 |
Bisazo dyestuffs based on hydroxynaphthalene carboxylic acid App 20040010866 - Schroder, Gunter-Rudolf ;   et al. | 2004-01-22 |
Method of producing paper, paperboard and cardboard Grant 6,673,206 - Linhart , et al. January 6, 2 | 2004-01-06 |
Triarylmethane dyes App 20030181740 - Kast, Hellmut ;   et al. | 2003-09-25 |
Cationic sulfonic acid dyes Grant 6,048,969 - Schroder , et al. April 11, 2 | 2000-04-11 |
Cationic azo dyes based on aminobenzoic acid Grant 6,048,968 - Etzbach , et al. April 11, 2 | 2000-04-11 |
Production of paper, board and cardboard from paper stocks containing foreign materials Grant 5,098,521 - Freudenberg , et al. March 24, 1 | 1992-03-24 |
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