Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848443 | Preparation of foundry molds or cores | Geoffrey W. Westwood | 1989-07-18 |
| 4352755 | Production of maleic anhydride | Graham John Hutchings, Deborah A. Trebilco, Philip E. Starkey | 1982-10-05 |
| 4317777 | Production of maleic acid and anhydride | Graham John Hutchings | 1982-03-02 |
| 4288372 | Production of maleic anhydride | Graham John Hutchings | 1981-09-08 |
| 4222945 | Production of maleic anhydride | Graham John Hutchings | 1980-09-16 |
| 4209423 | Production of acid anhydrides and catalysts therefor | Graham John Hutchings | 1980-06-24 |