Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4951745 | Stuffing box and grease injector for underwater wells | Colin Scott Boyle | 1990-08-28 |
| 4575044 | Lubricator section | — | 1986-03-11 |
| 4506858 | Wireline valve inner seal | — | 1985-03-26 |
| 4442859 | Control valve | — | 1984-04-17 |