Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4330480 | Preparation of aminoalkyl half-esters of sulfuric acid | Karl-Heinz Beyer, Albrecht H. Wallis, Klaus Wulz, Kamuran Izi | 1982-05-18 |
| 4328142 | Preparation of water-soluble condensates and their use as crosslinking agents for the preparation of papermaking aids | Emil Scharf, Jaroslav Melzer | 1982-05-04 |