Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6372912 | Process for ring cleavage of thiazolidine derivatives | Wolfgang Döring | 2002-04-16 |
| 4567297 | Preparation of aqueous N-methylol amide solutions | Peter Ball, Klaus Marquardt, Manfred Selig | 1986-01-28 |
| 4252931 | Polymers containing primary aliphatic carbonamide groups and/or N-methylol derivatives of the carbonamide groups | Klaus Marquardt | 1981-02-24 |