Steckelberg; Willi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Steckelberg; Willi.The latest application filed is for "polycondensates containing phosphinic and phosphonic acid groups".
- Steckelberg; Willi - Hofheim/TS DE
- Steckelberg; Willi - Hofheim DE
| Patent | Date |
|---|---|
| Polycondensates containing phosphinic and phosphonic acid groups Grant 5,530,093 - Engelhardt , et al. June 25, 1 | 1996-06-25 |
| Polycondensates containing phosphinic or phosphonic acid groups and siloxane groups Grant 5,492,995 - Engelhardt , et al. February 20, 1 | 1996-02-20 |
| Water-soluble sulphur dyes, their preparation and use Grant 5,383,961 - Bauer , et al. January 24, 1 | 1995-01-24 |
| Water-soluble trisazo dyes Grant 5,110,917 - Bauer , et al. May 5, 1 | 1992-05-05 |
| Process for the dyeing of synthetic fiber materials from organic solvents Grant 3,930,794 - Birke , et al. January 6, 1 | 1976-01-06 |
| Water-insoluble carbonylalkylene sulfonamido containing azo dyestuffs Grant 3,883,504 - Schickfluss , et al. May 13, 1 | 1975-05-13 |
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