Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4964875 | Process for after-treatment of dyed polyamide textile materials with polyurethane containing quaternary ammonium groups | Udo-Winfried Hendricks, Josef Sanders | 1990-10-23 |
| 4787910 | Condensation products and processes for the after-treatment of dyed polyamides | Udo-Winfried Hendricks | 1988-11-29 |
| 4775384 | Process for treating fibre materials | Henning Bachem, Wolf-Dieter Schroer, Heinz-Dieter Feuser | 1988-10-04 |
| 4629468 | Process for treating cellulosic fibre material | Helmut Engelhard, Dieter Feuser, Udo-Winfried Hendricks | 1986-12-16 |
| 4237268 | Esters of acylated aminocarboxylic acid containing compounds | Klaus Walz | 1980-12-02 |