Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886895 | Phosphate-containing and phosphonate-containing phosphate esters | Thomas A. Hardy | 1989-12-12 |
| 4883891 | Phosphate and phosphonate compounds | Thomas A. Hardy | 1989-11-28 |
| 4883892 | Phosphate and phosphonate compounds | Thomas A. Hardy | 1989-11-28 |
| 4820854 | Phosphate-containing and phosphonate-containing phosphate esters | Thomas A. Hardy | 1989-04-11 |
| 4808744 | Phosphonate containing phosphonates | Thomas A. Hardy | 1989-02-28 |