Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4330480 | Preparation of aminoalkyl half-esters of sulfuric acid | Otto Hertel, Karl-Heinz Beyer, Albrecht H. Wallis, Kamuran Izi | 1982-05-18 |
| 4324724 | Manufacture of polyalkylenepolyamines | Hans Mueller, Karl-Heinz Beyer, Werner Streit | 1982-04-13 |