Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5364824 | Catalysis for the production of maleic anhydride containing vanadium-phosphorus oxide with selected promoter elements | William J. Andrews, Timothy R. Felthouse | 1994-11-15 |
| 5275996 | Phosphorous/vanadium oxide catalyst and process of preparation thereof | William J. Andrews, Timothy R. Felthouse | 1994-01-04 |