Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812291 | Method of fumigating agricultural products using hydrogen phosphide | Wolfgang Friemel, Volker Barth, Martin Munzel | 1989-03-14 |
| 4720380 | Hydrogen-phosphide releasing compositions and processes for their production and use | Wolfgang Friemel | 1988-01-19 |
| 4597218 | Sachet for use in pest control | Wolfgang Friemel | 1986-07-01 |
| 4503032 | Hydrogen-phosphide releasing compositions and their use | Wolfgang Friemel | 1985-03-05 |
| 4213967 | Pesticide containing ignition inhibitor | Werner O. Praxl | 1980-07-22 |
| 4210683 | Process for preparing pesticides releasing hydrogen phosphide | Werner O. Praxl | 1980-07-01 |