Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4189467 | Polyurethanes having ectoparasiticidal activity | Miklos von Bittera, Hans U. Sieveking, Wilhelm Stendel | 1980-02-19 |
| 4183913 | Ectoparasiticidal compositions and use | Edgar Enders, Wilhelm Stendel | 1980-01-15 |