Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5560258 | Release mechanism for use with a remote tool | William M. Coffey, Syed Z. Ali | 1996-10-01 |
| 4900041 | Subsea well casing hanger packoff system | Randy J. Wester, Don C. Underwood | 1990-02-13 |
| 4836579 | Subsea casing hanger suspension system | Randy J. Wester, Don C. Underwood | 1989-06-06 |
| 4595063 | Subsea casing hanger suspension system | Charles E. Jennings | 1986-06-17 |
| 4510960 | Valve stem-to-bonnet backseat | Charles E. Jennings, Claud C. Barrington, Lien-Yan Chen, John N. McIntyre, Alfred P. Regitz | 1985-04-16 |