Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866089 | Chromene derivatives and pesticidal composition comprising the same | Tibor Timar, Kalman Zsupan, Janos Repasi, Iren Borsos nee Safranek, Istvan Kiss +1 more | 1989-09-12 |