Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880839 | Acyanilide derivatives | — | 1989-11-14 |
| 4873329 | Alkene, alkyne or cycloalkylene derivatives | Leslie R. Hughes, John Oldfield | 1989-10-10 |
| 4845119 | Alkene, alkyne or cycloalkylene derivatives | Leslie R. Hughes | 1989-07-04 |