Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7806193 | Swellable packer with back-up systems | Douglas J. Murray, Edward T. Wood, Steven N. Bailey, Robert O. Castillo, Darwin D. Arline | 2010-10-05 |
| 7661471 | Self energized backup system for packer sealing elements | Douglas J. Murray | 2010-02-16 |
| 7552777 | Self-energized downhole tool | Douglas J. Murray, Edward T. Wood, Gregory C. Badke | 2009-06-30 |
| 7478679 | Field assembled packer | Walter J. Laflin, Robert O. Castillo, Darwin D. Arline | 2009-01-20 |
| 7441596 | Swelling element packer and installation method | Edward T. Wood, Steven N. Bailey, Walter J. Laflin, James R. Korte, Edward J. O'Malley +1 more | 2008-10-28 |
| 7392841 | Self boosting packing element | Douglas J. Murray | 2008-07-01 |
| 5366020 | Reinflatable external casting packer and method of casing | John R. Abarca | 1994-11-22 |
| 5297633 | Inflatable packer assembly | Philip M. Snider, Michael Dietrich | 1994-03-29 |
| 5271462 | Zone isolation apparatus | — | 1993-12-21 |
| 5201369 | Reinflatable external casing packer | John R. Abarca | 1993-04-13 |
| 5109926 | Wellbore packer with shearable anti-rotation locking member | Rustom K. Mody, Randle E. Ford, James C. Burtner | 1992-05-05 |
| 4962812 | Valving system for inflatable packers | — | 1990-10-16 |
| 4941534 | Method and apparatus for sealing a casing in a subterranean well bore | — | 1990-07-17 |
| 4840231 | Method and apparatus for setting an inflatable packer | Luis E. Mendez | 1989-06-20 |
| 4838349 | Apparatus for testing selected zones of a subterranean bore | — | 1989-06-13 |
| 4721157 | Fluid sampling apparatus | — | 1988-01-26 |