Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8668016 | System and method for servicing a wellbore | Jesse Cale Porter, Kendall Lee Pacey, Matthew Todd Howell, William Ellis Standridge, Jimmie R. Williamson, Jr. +1 more | 2014-03-11 |
| 8276675 | System and method for servicing a wellbore | Jimmie R. Williamson, Jr., Roger Watson | 2012-10-02 |
| RE42733 | Wear-resistant, variable diameter expansion tool and expansion methods | John C. Gano, Kenneth L. Schwendemann, Darrin N. Towers, Ralph H. Echols | 2011-09-27 |
| 7048048 | Expandable sand control screen and method for use of same | Philip D. Nguyen, Jimmie D. Weaver, Johnny Barton, R. Ashley Donaldson, Alex Procyk +4 more | 2006-05-23 |
| 6776241 | Screen jacket assembly connection and methods of using same | Ana M. Castano-Mears, Ralph H. Echols | 2004-08-17 |
| 6722427 | Wear-resistant, variable diameter expansion tool and expansion methods | John C. Gano, Kenneth L. Schwendemann, Darrin N. Towers, Ralph H. Echols | 2004-04-20 |
| 6668936 | Hydraulic control system for downhole tools | Jimmie R. Williamson, Jr., Virgilio Garcia-Soule, Leo G. Collins | 2003-12-30 |
| 6530431 | Screen jacket assembly connection and methods of using same | Ana M. Castano-Mears, Ralph H. Echols | 2003-03-11 |
| 6199632 | Selectively locking locator | — | 2001-03-13 |
| 6119783 | Linear indexing apparatus and methods of using same | Charles D. Parker, Rennie L. Dickson, Leo G. Collins, John C. Gano | 2000-09-19 |
| 6116343 | One-trip well perforation/proppant fracturing apparatus and methods | Ronald van Petegem, David L. Reesing | 2000-09-12 |
| 6026903 | Bidirectional disappearing plug | John C. Gano, David L. Reesing, Michael P. Adams, James R. Longbottom, Bill W. Loughridge +1 more | 2000-02-22 |
| 5947205 | Linear indexing apparatus with selective porting | — | 1999-09-07 |
| 5865252 | One-trip well perforation/proppant fracturing apparatus and methods | Ron van Petegem, David L. Reesing, Alan Tancel Jackson | 1999-02-02 |
| 5826661 | Linear indexing apparatus and methods of using same | Charles D. Parker, Rennie L. Dickson, Leo G. Collins, John C. Gano | 1998-10-27 |
| 5765641 | Bidirectional disappearing plug | John C. Gano, David L. Reesing, Michael P. Adams, James R. Longbottom, Bill W. Loughridge +1 more | 1998-06-16 |
| 5479989 | Sleeve valve flow control device with locator shifter | Robert W. Crow | 1996-01-02 |
| 5390742 | Internally sealable perforable nipple for downhole well applications | Christopher A. Dines, Clark E. Robison, William R. Welch | 1995-02-21 |
| 5375659 | Sonde supported operating system for control of formation production fluid flow | Gregory N. Gilbert, Martin L. Tomek, William B. King, Jerry R. Bennett, William R. Welch | 1994-12-27 |
| 5361843 | Dedicated perforatable nipple with integral isolation sleeve | Christopher A. Dines | 1994-11-08 |
| 5355953 | Electromechanical shifter apparatus for subsurface well flow control | William R. Welch | 1994-10-18 |
| 5309988 | Electromechanical shifter apparatus for subsurface well flow control | William R. Welch | 1994-05-10 |