Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5058683 | Wet connector | Craig W. Godfrey, Mark A. Schnatzmeyer | 1991-10-22 |
| 4997384 | Wet connector | Craig W. Godfrey, Mark A. Schnatzmeyer | 1991-03-05 |
| 4938060 | Downhole inspection system | Phillips S. Sizer, Charles C. Cobb | 1990-07-03 |
| 4921438 | Wet connector | Craig W. Godfrey, Mark A. Schnatzmeyer | 1990-05-01 |
| 4418756 | Method and apparatus for performing operations in well tubing | John H. Yonker | 1983-12-06 |
| 4355686 | Well system and method | Thomas J. Heard | 1982-10-26 |
| 4344602 | Lock open mechanism for subsurface safety valve | — | 1982-08-17 |
| 4334581 | Balanced area safety valve | — | 1982-06-15 |
| 4204690 | Sealing retaining ring assembly | Warren E. Holland, James D. Burley | 1980-05-27 |
| 4201363 | Tubing retrievable surface controlled subsurface safety valve | Thomas M. Deaton, Gary Allen Kohn | 1980-05-06 |