Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5862864 | Well safety system | — | 1999-01-26 |
| 5441111 | Bridge plug | — | 1995-08-15 |
| 4446922 | Adjustable safety valve | Michael L. Bowyer | 1984-05-08 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5862864 | Well safety system | — | 1999-01-26 |
| 5441111 | Bridge plug | — | 1995-08-15 |
| 4446922 | Adjustable safety valve | Michael L. Bowyer | 1984-05-08 |