Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5298032 | Process for dyeing cellulosic textile material with disperse dyes | Wolfgang Schlenker, Peter Liechti, Dieter Werthemann | 1994-03-29 |
| 5199956 | Process for dyeing hydrophobic textile material with disperse dyes from super-critical carbon dioxide | Wolfgang Schlenker, Dieter Werthemann, Peter Liechti | 1993-04-06 |
| 5196521 | Azo dyes prepared using 2-alkylamino-3-cyano-4,6-diaminopyridines as coupling components | Visvanathan Ramanathan | 1993-03-23 |
| 5037967 | N-phenoxyalkylene anilines as coupling components | Peter Liechti, Max Dempfle | 1991-08-06 |
| 4910299 | Disperse azo dyes containing N-phenoxyalkyleneanilines as coupling components | Peter Liechti, Max Dempfle | 1990-03-20 |