Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4327099 | Pyrano derivatives, a process for their preparation and their use | John M. Evans | 1982-04-27 |
| 4316899 | Chromanone derivatives, a process for their preparation and compositions containing them | — | 1982-02-23 |