Issued Patents All Time
Showing 1–25 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8291989 | Retrieval method for opposed slip type packers | — | 2012-10-23 |
| 7861791 | High circulation rate packer and setting method for same | Michael Dale Ezell | 2011-01-04 |
| RE41118 | Annular isolators for expandable tubulars in wellbores | Michael M. Brezinski, Gregory B. Chitwood, Ralph H. Echols, Gary P. Funkhouser, John C. Gano +8 more | 2010-02-16 |
| 7404437 | Annular isolators for expandable tubulars in wellbores | Michael M. Brezinski, Gregory B. Chitwood, Ralph H. Echols, Gary P. Funkhouser, John C. Gano +7 more | 2008-07-29 |
| 7363986 | Annular isolators for expandable tubulars in wellbores | Michael M. Brezinski, Gregory B. Chitwood, Ralph H. Echols, Gary P. Funkhouser, John C. Gano +10 more | 2008-04-29 |
| 7320367 | Annular isolators for expandable tubulars in wellbores | Michael M. Brezinski, Ralph H. Echols, Gary P. Funkhouser, William David Henderson, Ronald J. Powell +2 more | 2008-01-22 |
| 7252142 | Annular isolators for expandable tubulars in wellbores | Michael M. Brezinski, Gregory B. Chitwood, Ralph H. Echols, Gary P. Funkhouser, John C. Gano +7 more | 2007-08-07 |
| 7231987 | Deep set packer with hydrostatic setting actuator | Daniel Luther Patterson | 2007-06-19 |
| 7198110 | Two slip retrievable packer for extreme duty | Daniel Luther Patterson | 2007-04-03 |
| 7055596 | Packer releasing methods | Daniel Luther Patterson | 2006-06-06 |
| 6860326 | Packer releasing methods | Daniel Luther Patterson | 2005-03-01 |
| 6854522 | Annular isolators for expandable tubulars in wellbores | Michael M. Brezinski, Gregory B. Chitwood, Ralph H. Echols, Gary P. Funkhouser, John C. Gano +12 more | 2005-02-15 |
| 6793022 | Spring wire composite corrosion resistant anchoring device | Michael Lee Vick | 2004-09-21 |
| 6651749 | Well tool actuators and method | — | 2003-11-25 |
| 6547011 | Method and apparatus for controlling fluid flow within wellbore with selectively set and unset packer assembly | — | 2003-04-15 |
| 6478093 | Retrievable well packer apparatus and method | Robert L. Hilts | 2002-11-12 |
| 6364368 | Internal flush coupling for composite coiled tubing | — | 2002-04-02 |
| 6302217 | Extreme service packer having slip actuated debris barrier | Robert L. Hilts | 2001-10-16 |
| 6267180 | Packer releasing tool and method for releasing a packer assembly from a wellbore | Imre I. Gazda, Dennis D. Rood | 2001-07-31 |
| 6257338 | Method and apparatus for controlling fluid flow within wellbore with selectively set and unset packer assembly | — | 2001-07-10 |
| 6182765 | System and method for deploying a plurality of tools into a subterranean well | — | 2001-02-06 |
| 6112811 | Service packer with spaced apart dual-slips | Robert L. Hilts | 2000-09-05 |
| 6056052 | Retrievable torque-through packer having high strength and reduced cross-sectional area | Bryon Mullen, Ralph H. Echols | 2000-05-02 |
| 5944102 | High temperature high pressure retrievable packer | John C. Gano | 1999-08-31 |
| 5906240 | Slip having passageway for lines therethrough | Dennis D. Rood | 1999-05-25 |