Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5097021 | Reactive dyestuffs where the reactive radical carries a cyclic nitrogen heterocycle | Hermann Henk, Karl-Josef Herd | 1992-03-17 |
| 5095102 | 6-substituted sulphonyl-8-sulpho-2-naphthyl monoazo reactive dyestuffs | Karl-Josef Herd, Manfred Hoppe, Hermann Henk, Rolf Brockmann | 1992-03-10 |
| 5093482 | Reactive dyestuffs | Karl H. Schundehutte | 1992-03-03 |
| 5093481 | Fiber reactive azo dyestuffs | Hermann Henk, Karl-Josef Herd | 1992-03-03 |
| 5091515 | Process for the preparation of substituted 2,4-diamino-6-fluoro-S-triazines | Karl-Josef Herd, Hans-Georg Frosch, Hermann Henk, Wolfgang Mullers | 1992-02-25 |
| 4988803 | Fiber reactive azo dyes containing a morpholinyl-, piperazinyl- or piperidnyl- substituted flurotriazinyl radical | Hermann Henk, Karl-Josef Herd | 1991-01-29 |
| 4839468 | N-(hydroxy-sulpho-naphthyamino-triazinyl)-arylene-diamines | Horst Nickel, Peter Wild | 1989-06-13 |
| 4544737 | Piperazinyl-triazinylnaphtholsulphonic acid azo dyes | Horst Nickel | 1985-10-01 |
| 4521217 | Phthalocyanine and azo dyestuff mixtures and their use for dyeing paper | Ulrich Beck, Horst Nickel | 1985-06-04 |
| 4517357 | Symmetrical bis-(triazinyamino phenyl azo acetoacetanilide) dyestuffs | Klaus Kunde | 1985-05-14 |
| 4509948 | Cationic mono- and dis-azo dyestuffs, and their preparation and use for dyeing paper and cationic dyeable substrates | Peter Wild | 1985-04-09 |
| 4435334 | Naphtholsulphonic acid compounds, their preparation and use as coupling components | Peter Wild, Horst Nickel | 1984-03-06 |