Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4898393 | Wear compensating stem sealing apparatus | — | 1990-02-06 |
| 4579143 | Control and purge valve for atomization of heavy fuel oil for combustion | William P. Coppin | 1986-04-01 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4898393 | Wear compensating stem sealing apparatus | — | 1990-02-06 |
| 4579143 | Control and purge valve for atomization of heavy fuel oil for combustion | William P. Coppin | 1986-04-01 |