Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4348401 | N-Phenoxyalkylpiperidine derivatives | Walter-Gunar Friebe, Wolfgang Kampe, Max Thiel, Wolfgang Schaumann | 1982-09-07 |
| 4330549 | Coumarins connected via an oxyalkyl group with a piperidine ring having anti-allergic action | Walter-Gunar Friebe, Werner Winter, Max Thiel, Androniki Roesch | 1982-05-18 |