Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4198354 | Manufacture of .alpha.-formylethanephosphonic acid esters | Hardo Siegel, Hans Theobald | 1980-04-15 |
| 4190650 | Phosphonyl vinyl phosphorus compounds as pesticides | Karl Kiehs, Heinrich Adolphi | 1980-02-26 |