Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6218391 | Triazinones and derivatives thereof | Argyrios Georgios Arvanitis, Richard E. Olson, William Frietze | 2001-04-17 |
| 6159980 | Pyrazinones and triazinones and their derivatives thereof | Argyrios Georgios Arvanitis, Richard E. Olson, William Frietze | 2000-12-12 |
| 4312906 | Stop-off composition for metals | Donald A. Pennington | 1982-01-26 |
| 4230614 | Stop-off compound and method of making | Donald A. Pennington | 1980-10-28 |