Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4202838 | Sulphonated condensation products | Alain Lauton, Roland Putzar, Gustaaf Scherer | 1980-05-13 |
| 4200585 | Acid esters of propylene oxide poly-adducts | Alfred Berger | 1980-04-29 |