Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4339578 | Bisguanamines | Peter Werle, Wolfgang Merk, Friedhelm Hoevels | 1982-07-13 |
| 4332935 | Process for the production of cationic starch ethers | Wolfgang Fischer, Manfred Langer | 1982-06-01 |
| 4329519 | Process for the purification of pentaerythritol | Peter Werle | 1982-05-11 |