Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5917121 | Monoazo dyes which are stable under dyeing conditions, their preparation and their use | Ulrich Buhler, Heinz G. Zorn, Klaus-Wilfried Wanken | 1999-06-29 |
| 5902356 | Textile dye preparations | Ulrich Buhler, Rainer Az | 1999-05-11 |
| 5824117 | Nitrobenzisothiazole azo dyestuff | Ulrich Buhler, Jurgen Kuhlwein | 1998-10-20 |
| 5512063 | Use of novolak derivatives in the dyeing of polyester-cellulose blend fabrics and processes for the continuous dyeing of such blend fabrics | — | 1996-04-30 |
| 5415669 | Dye mixtures for the dyeing of textile hydrophobic fibre materials | Ulrich Buhler, Erwin Dietz | 1995-05-16 |
| 5240466 | Dyeing leather with water-insoluble sulphur dyes | Wolfgang Bauer, Gert Nagl, Jan Mast, Lothar Schlosser | 1993-08-31 |
| 5174791 | Process for dyeing and printing blend fabrics of polyester and natural fibre materials with disperse dye and polyether-polyester to inhibit soilins with disperse dye | Ulrich Buhler, Klaus Hofmann, Jurgen Kuhlwein, Willi Steckelberg | 1992-12-29 |
| RE33908 | Mixtures of blue mono-azo disperse dyestuffs and their use for dyeing polyester | Horst Tappe, Reinhard Kuhn, Albert Bode, Margareta Boos | 1992-05-05 |
| 5071443 | Blue azo dyestuff mixture for strong blue color on hydrophobic fibers | Ulrich Buhler, Manfred Hahnke, Margareta Boos, Reinhard Kuhn | 1991-12-10 |
| 5037962 | .beta.-modification of 1-(2,4-dinitro-6-chloro-phenylazo)-2-propionylamino-4-N-ethylamino-5-(2- methoxy-ethoxy)benzene, its preparation and its use | Ulrich Buhler, Konrad Opitz, Willi Steckelberg | 1991-08-06 |
| 4921505 | Process for the preparation of new crystal modification of an azo dyestuff | Gunther Effenberger | 1990-05-01 |
| 4851012 | Mixtures of blue disperse monoazo dyestuffs | Ulrich Buhler, Reinhard Kuhn, Margareta Boos | 1989-07-25 |
| 4678476 | Mixtures of blue mono-azo disperse dyestuffs and their use for dyeing polyester | Horst Tappe, Reinhard Kuhn, Albert Bode, Margareta Boos | 1987-07-07 |
| 4389213 | Use of esterified oxalkylates as formulation agents for dyestuffs and corresponding dyestuff preparations | Manfred Schneider, Konrad Opitz | 1983-06-21 |
| 4336025 | Composition containing colorants and esterified oxalkylates of aromatic hydroxy compounds | Manfred Schneider, Konrad Opitz | 1982-06-22 |
| 4333732 | Dyestuff preparations containing oxalkylates of modified natural rosin acids | Reinhold Deubel, Konrad Opitz, Manfred Schneider, Heinz Uhrig | 1982-06-08 |
| 4286960 | Dyestuff compositions containing acylated alkoxylates of polyhydric aliphatic alcohols | Manfred Schneider, Konrad Opitz, Siegfried Billenstein | 1981-09-01 |