Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5973147 | Process for dichromatic or trichromatic dyeing or printing | Urs Lehmann, Marcel Frick | 1999-10-26 |
| 5944855 | Process for dichromatic or trichromatic dyeing or printing | Urs Lehmann, Marcel Frick | 1999-08-31 |
| 5779740 | Process for dichromatic or trichromatic dyeing or printing | Urs Lehmann, Marcel Frick | 1998-07-14 |
| 5690699 | Azo dye mixtures and their use | Urs Lehmann | 1997-11-25 |
| 5540739 | Process for dyeing naturally occurring or synthetic polyamide fibres | Franz Gruner, Martin Jollenbeck, Jorg Binz | 1996-07-30 |
| 5360455 | Process for producing multicolor or tone-in-tone effects | Alfred Hohener, Huanzhong Wang, Manfred Rembold | 1994-11-01 |
| 5207799 | Process for dyeing wool and blends thereof with other fibres using reactive dyes and colorless fiber-reactive dyeing assistant | Gerhard Back, Josef Koller | 1993-05-04 |
| 5145486 | Process for dyeing wool with reactive dyes | — | 1992-09-08 |