Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5349057 | Water soluble azo dyes containing a cyanoamino-triazinyl-amino group and a fiber-reactive of the sulfone series | Hartmut Springer | 1994-09-20 |
| 5243034 | Disazo dyestuffs having a triazine moiety and a fiberreactive group of vinylsulfone series | Horst Tappe, Dieter Oehme, Werner Russ | 1993-09-07 |
| 5227475 | Water-soluble fiber-reactive dyestuffs containing a cyanamido-substituted triazinylamino-grouping, and a process for dyeing with the use of these dyes | Reinhard Hahnle, Hartmut Springer | 1993-07-13 |
| 5166338 | Water-soluble fiber-reactive dyes and preparation and use thereof | Josef Geisenberger, Hartmut Springer | 1992-11-24 |
| 5138041 | Water-soluble fiber-reactive monoazo and disazo dyestuffs having a s-triazinylamino group and three fiber-reactive groups of the vinylsulfone series | Werner Russ, Horst Tappe | 1992-08-11 |
| 5112970 | Water-soluble triphendioxazine compounds and precursors thereof containing sulfonyl groups, processes for their preparation and the use of the triphendioxazines as dyestuffs | Hartmut Springer | 1992-05-12 |
| 5079347 | Water-soluble disazo compounds having a halogen-substituted S-triazinyl radical, suitable as dyestuffs | — | 1992-01-07 |
| 5021558 | Water-soluble fiber reactive dyes | — | 1991-06-04 |
| 4873320 | Water-soluble monoazo and disazo dyes containing a fiber-reactive 2-chloro-4-(nitrophenylamino-alkylamino)-s-triazin-6-ylamino grouping with a fiber-reactive group of the vinylsulfone series as a substituent in the nitrophenyl moiety | Hartmut Springer, Manfred Kuhn | 1989-10-10 |