Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12135018 | Method and systems for positive displacement of an actuation device | — | 2024-11-05 |
| 12116868 | Method and systems for subsurface carbon capture | — | 2024-10-15 |
| 10954744 | Plug and abandonment system for forming an upper plug when abandoning an oil and gas well | Ole Eddie Karlsen, Luis Felipe de Barros Mendes, Vidar Sten-Halvorsen | 2021-03-23 |
| 10344550 | Systems for reversing fluid flow to and from a single-direction fluid flow device | — | 2019-07-09 |
| 10344549 | Systems for removing blockages in subsea flowlines and equipment | Mark A. Johnson, Kevin Roy Knight | 2019-07-09 |
| 9556713 | Methods for retrieval and replacement of subsea production and processing equipment | Michael R. Williams, Thomas L. Hergarden, Howard J. Hartley, Andrei Strikovski, Eric Smedstad +2 more | 2017-01-31 |
| 9441461 | Methods for retrieval and replacement of subsea production and processing equipment | Michael R. Williams, Thomas L. Hergarden, Howard J. Hartley, Andrei Strikovski, Eric Smedstad +2 more | 2016-09-13 |
| 7008141 | Collapsible buoyancy device for risers on offshore structures | John A. Fitzgerald, Marcus Smedley, Christopher E. Cunninham | 2006-03-07 |
| 6964304 | Technique for maintaining pressure integrity in a submersible system | Michael R. Williams | 2005-11-15 |
| 6887016 | Mudmat foundation for subsea equipment | — | 2005-05-03 |
| 6866095 | Downhole safety valve for central circulation completion system | — | 2005-03-15 |
| 6640902 | Nested stack-down casing hanger system for subsea wellheads | Robert B. Baten, David Campbell Macfarlane, Russell McBeth, Randy J. Wester, Marcus Smedley | 2003-11-04 |
| 6536461 | Subsea pig launching apparatus | Robert R. Decker, Steven A. Reinhardt | 2003-03-25 |
| 6336421 | Floating spar for supporting production risers | John A. Fitzgerald | 2002-01-08 |
| 6102124 | Flying lead workover interface system | Timothy Goggans, Sterling F. LEWIS, Robert J. Writt | 2000-08-15 |
| 5890450 | Linear stroke valve position indicator | Robert Shawn Hamell, Christopher D. Bartlett, Christopher E. Cunningham | 1999-04-06 |
| 5775427 | Internally latched subsea wellhead tieback connector | Bashir M. Koleilat, Shiva P. Singeetham | 1998-07-07 |
| 5730551 | Subsea connector system and method for coupling subsea conduits | Bill George Louis | 1998-03-24 |
| 5219244 | Subsea pipeline pig launching system | — | 1993-06-15 |
| 5044672 | Metal-to-metal sealing pipe swivel joint | Christopher E. Cunningham, Edmund M. Mouret, Donald M. Underwood, Michael J. Krenek | 1991-09-03 |