Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6244359 | Subsea diverter and rotating drilling head | Charles D. Bridges, Glen H. Cuiper, Noel A. Monjure | 2001-06-12 |
| 4928999 | Elastomeric guard seal for tubular connections | Donald J. Ortloff, Charles A. Bollfrass | 1990-05-29 |
| 4903992 | Locking ring for oil well tool | Charles E. Jennings | 1990-02-27 |
| 4688832 | Well pipe joint | Donald J. Ortloff | 1987-08-25 |
| 4629224 | Tubular connection | — | 1986-12-16 |
| 4537428 | Joint and joint components for pipe sections subjected to axial compression loads | — | 1985-08-27 |
| 4537429 | Tubular connection with cylindrical and tapered stepped threads | — | 1985-08-27 |