Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877540 | Methylolated and optionally etherified urethanes containing fluoroalkyl ligands | Karl Hintermeier, Manfred Muller, Norbert Munch, Hans Wagener | 1989-10-31 |
| 4828570 | Tanning agent and a process for its preparation | Ulrich Riegel, Kuno Reh, Helmut Croon, Hermann Becker, Werner Lotz | 1989-05-09 |