Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4505856 | Azo dyestuff dischargeable to white | Ulrich Buhler, Horst Tappe, Kurt Roth | 1985-03-19 |
| 4485042 | Dyestuff containing at least three azo bridges | Norbert Armbrecht, Wolfgang Bauer | 1984-11-27 |
| 4476052 | Azo pigment having improved hiding power and a process for its preparation | Klaus Hunger, Friedrich Weingarten, Wolfgang Rieper | 1984-10-09 |
| 4430090 | Process for coloring organic solvents, mineral oil products, waxes, plastics and surface coatings with cyano-nitro-amino-azo dyes | Ulrich Buhler, Reinhard Hahnle, Helmut Richter | 1984-02-07 |
| 4406661 | Process for dyeing and printing synthetic, hydrophobic fibre material with dischargeable azo disperse dye | Ulrich Buhler, Horst Tappe, Kurt Roth | 1983-09-27 |
| 4398913 | Process for producing discharge reserve prints on textile materials | Ulrich Buhler, Kurt Roth, Theo Stahl | 1983-08-16 |
| 4348204 | Aqueous dyestuff formulation, a process for its preparation and its use for dyeing and printing | Wolfgang Bauer, Heinz Dickmanns, Konstantin Morgenroth, Kuno Reh | 1982-09-07 |
| 4323363 | Dyeing of mixed fibers | Gert Brachten, Friedrich Engelhardt, Heinz Helling | 1982-04-06 |
| 4313872 | Azo coupling in two-phase water-alcohol mixtures | Ernst Heinrich | 1982-02-02 |
| 4314052 | Polyester which is soluble or dispersible in water, a process for its preparation and its use as a levelling auxiliary, levelling auxiliaries and processes for uniform dyeing | Friedrich Engelhardt, Karl Hintermeier, Walter Dursch, Walter Rupp | 1982-02-02 |
| 4302582 | Process for the preparation of a condensation product from phenothiazine and p-nitrosophenol | Gert Nagl, Ulrich Gotsmann, Heinz Dickmanns | 1981-11-24 |
| 4265629 | Process for the production of resist effects on polyester/cellulose mixed fiber textiles | Horst Tappe, Kurt Roth, Hans-Jurgen Weyer | 1981-05-05 |
| 4254026 | Water-soluble monoazo dyestuffs | Wolfgang Bauer | 1981-03-03 |
| 4252532 | Process for dyeing evenly synthetic fibrous materials | Friedrich Engelhardt, Karl Hintermeier, Ralf Zimmermann | 1981-02-24 |
| 4252530 | Process for dyeing and printing synthetic hydrophobic fiber material | Horst Tappe, Kurt Roth, Hans-Jurgen Weyer | 1981-02-24 |
| 4237249 | Process for the preparation of crosslinked copolymers, the process products obtained, and their use in textile printing | Juliane Balzer, Friedrich Engelhardt, Wolfram Schidlo | 1980-12-02 |
| 4237243 | Use of cross-linked polymers to increase the viscosity in cosmetic, pharmaceutical and technical compositions | Jochen M. Quack, Alwin Reng, Juliane Balzer, Friedrich Engelhardt | 1980-12-02 |
| 4225492 | Water-soluble disazo dyestuffs, prepared from unsymmetrical heterocyclic diamines | Wolfgang Bauer | 1980-09-30 |
| 4218219 | Condensation product from phenothiazine and p-nitrosophenol, process for the production of the condensation product, process for the production of sulfur dyestuffs using the condensation product and the sulfur dyestuffs prepared therewith | Gert Nagl, Heinz Dickmanns, Ulrich Gotsmann | 1980-08-19 |
| 4204056 | Process and intermediates for preparing fiber-reactive phthalocyanine dyes | Rolf Muller | 1980-05-20 |
| 4198204 | Short liquor dyeing process for piece goods, made from cellulose fibers, in rope form | Hans-Ulrich von der Eltz, Joachim W. Lehmann, Erwin Ungermann, Edwin Humuller, Karl-Heinz Keil | 1980-04-15 |
| 4195020 | Dichloro-phenyl-azo-acetoacetylamino-benzimidazolone pigments | Klaus Hunger | 1980-03-25 |
| 4192947 | Process for the production of aminophenylaminobenzimidazoles | Wolfgang Bauer | 1980-03-11 |
| 4191686 | Process for preparing fiber-reactive phthalocyanine azo dyes | Rolf Muller | 1980-03-04 |