Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844050 | Evaporation apparatus for active ingredients such as pyrethrum incorporated into solid carrier materials | Horst Hautmann, Georg Schimanski | 1989-07-04 |
| 4750471 | Evaporation apparatus for active ingredients such as pyrethrum incorporated into solid carrier materials | Horst Hautmann, Georg Schimanski, Fritz von Philipp | 1988-06-14 |