Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4295850 | Commercial preparations of dry organic substances | Roland Haberli, Hans Mollet | 1981-10-20 |
| 4202838 | Sulphonated condensation products | Alain Lauton, Roland Putzar, Hans-Ulrich Berendt | 1980-05-13 |