Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6450262 | Riser isolation tool | — | 2002-09-17 |
| 6123151 | Valve for use in a subsea drilling riser | Dennis D. George | 2000-09-26 |
| 4648747 | Integral buoyant riser | Bruce J. Watkins, Bruce L. Crager, Gary L. Fox, Robert C. Houlgrave | 1987-03-10 |
| 4641841 | Metal seal for a tubular connection | — | 1987-02-10 |
| 4491345 | Marine conductor coupling | — | 1985-01-01 |
| 4476934 | Retractable stinger purge valve | — | 1984-10-16 |
| 4433939 | Marine conductor bending tool and method | — | 1984-02-28 |
| 4416495 | Concentric electric connector for subsea well apparatus | — | 1983-11-22 |