Kruckenberg; Winfried
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kruckenberg; Winfried.The latest application filed is for "benzoisothiazole azo dyestuffs".
- Kruckenberg; Winfried - Leverkusen DE
| Patent | Date |
|---|---|
| Benzoisothiazole azo dyestuffs Grant 4,681,932 - Kruckenberg , et al. July 21, 1 | 1987-07-21 |
| Benzisothiazole azo dyestuffs containing polyether groups Grant 4,292,239 - Kruckenberg , et al. September 29, 1 | 1981-09-29 |
| Dyestuff formulations Grant 4,249,902 - Kruckenberg , et al. February 10, 1 | 1981-02-10 |
| Process for dyeing polyurethane resins Grant 3,993,619 - Kruckenberg , et al. November 23, 1 | 1976-11-23 |
| Process for the dyeing of materials consisting of anion-modified polyacrylonitrile, polyamide and polyester fibres Grant 3,900,283 - Hildebrand , et al. August 19, 1 | 1975-08-19 |
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