Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859772 | Process for the preparation of 3-isopropyl-benzo-2-thia-1,3-diazinone-(4)-2,2-dioxide | Jeno Pelyva, K. Istvan Vecsey, Zoltan Kolonics, Laszlo Legradi, Andras Horvath +7 more | 1989-08-22 |
| 4820838 | Process for the preparation of depogen | Antal Friesz, Zsuzsanna Nad, Tamas Kallay | 1989-04-11 |