Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679800 | 2-Amino-3,5,disubstituted-4-halothiophenes and processes for the synthesis thereof | Robert Egli | 1997-10-21 |
| 5420254 | Disperse dyes | Ruedi Altermatt, Robert Egli | 1995-05-30 |
| 5132411 | Azo compounds having 2,4-disubstituted-3-halothienyl-5-diazo component radicals, dyeing processes therewith and substrates dyed therewith | Robert Egli | 1992-07-21 |
| 4889535 | 4-Substituted benzothiazol-2-ylazo-N-c8-14-alkykl-N-(2'-cyanoethyl)anilines optionally having a 3-C1-4-alkyl group | — | 1989-12-26 |
| 4874392 | Monoazo dyes having a substituted 1,4-phenylene coupling component radical having one C.sub.8-14 alkyl group or moiety | — | 1989-10-17 |
| 4728338 | Mixtures of at least one monoazo compound having a 2-cyano 4,6-dinitrophenyl diazo component radical and at least one monoazo compound having a 2-cyano-6-halo-4-nitrophenyl diazo component radical and their use | — | 1988-03-01 |
| 4687842 | Monoazo compounds having an imidazolium-2 group linked through an azo radical to a substituted phenyl group | — | 1987-08-18 |
| 4432770 | Rapid dyeing of polyester fibers with a mixture of disperse dyes | Rolf Hasler, Ernst Schnider, Hermann Ulshoefer | 1984-02-21 |
| 4289693 | Azo dyes having a quaternized heterocyclic diazo component radical and an optionally substituted aryloxyalkyl substituent on the amino group of the coupling component radical | — | 1981-09-15 |
| 4288227 | Basic phenoxazine dyestuffs | Berthold Gertisser | 1981-09-08 |
| 4247457 | Cationic dyes containing an aryloxy group linked through a bridging radical to a quaternized nitrogen atom | — | 1981-01-27 |
| 4244872 | Coumarin dyestuffs | Berthold Gertisser | 1981-01-13 |
| 4225490 | Heterocyclyl-azo-phenyl dyes having a cationic group linked through a branched alkylene chain to the nitrogen atom of the coupling component radical | Roland Entschel | 1980-09-30 |