Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4534096 | Valve seat with trapped O-ring | David L. Brown | 1985-08-13 |
| 4492362 | Valve seat with trapped O-ring | David L. Brown | 1985-01-08 |
| 4218259 | Porous surface sealing compound | — | 1980-08-19 |