Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4324407 | Pressure actuated metal-to-metal seal | Russell L. Rogers | 1982-04-13 |
| 4270717 | Elastomeric instrument clamp | — | 1981-06-02 |
| 4209037 | Environmental check valve | — | 1980-06-24 |