Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5202028 | Removal of metal complex dyes from wastewaters | Wolf-Dieter Kermer, Juergen Paulig | 1993-04-13 |
| 5015754 | Quaternized condensation products of trialkanolamines | Johannes P. Dix, Rolf Fikentscher | 1991-05-14 |