Issued Patents All Time
Showing 26–50 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9765601 | Constant entrance hole perforating gun system and method | Wenbo Yang, John T. Hardesty, David S. Wesson | 2017-09-19 |
| 9752406 | Wellbore plug isolation system and method | John T. Hardesty, David S. Wesson | 2017-09-05 |
| 9725993 | Constant entrance hole perforating gun system and method | Wenbo Yang, John T. Hardesty, David S. Wesson | 2017-08-08 |
| 9702222 | Reverse flow multiple tool system and method | John T. Hardesty, David S. Wesson | 2017-07-11 |
| 9689232 | Reverse flow actuation apparatus and method | John T. Hardesty, Kevin R. George, Raymond C. Shaffer, Michael D. Wroblicky, Dennis Roessler +2 more | 2017-06-27 |
| 9617826 | Reverse flow catch-and-engage tool and method | Dennis Roessler, Kevin R. George, Varun Garg, John T. Hardesty, Raymond C. Shaffer +1 more | 2017-04-11 |
| 9611721 | Reverse flow sleeve actuation method | David S. Wesson | 2017-04-04 |
| 9273535 | Hydraulic flow restriction tube time delay system and method | Kevin R. George, John T. Hardesty, Michael D. Wroblicky, James A. Rollins, Nathan G. Clark +2 more | 2016-03-01 |
| 9243472 | Wellbore plug isolation system and method | Kevin R. George, John T. Hardesty, Michael D. Wroblicky, Nathan G. Clark, James A. Rollins +1 more | 2016-01-26 |
| 9194227 | Systems, assemblies and processes for controlling tools in a wellbore | Daniel George Purkis | 2015-11-24 |
| 9062543 | Wellbore plug isolation system and method | Kevin R. George, John T. Hardesty, Michael D. Wroblicky, Nathan G. Clark, James A. Rollins +1 more | 2015-06-23 |
| 8850899 | Production logging processes and systems | — | 2014-10-07 |
| 8783350 | Processes for fracturing a well | — | 2014-07-22 |
| 8684084 | Method and apparatus for selective down hole fluid communication | David S. Wesson, Kevin R. George | 2014-04-01 |
| 8540027 | Method and apparatus for selective down hole fluid communication | David S. Wesson, Kevin R. George | 2013-09-24 |
| 8044820 | Method and system for performing operations and for improving production in wells | Joseph A. Zierolf | 2011-10-25 |
| 7714741 | Method and system for performing operations and for improving production in wells | Joseph A. Zierolf | 2010-05-11 |
| 7400263 | Method and system for performing operations and for improving production in wells | Joseph A. Zierolf | 2008-07-15 |
| 7353866 | Stimulation tool having a sealed ignition system | David S. Wesson, Kevin R. George, Joseph P. Haney | 2008-04-08 |
| 7283061 | Method and system for performing operations and for improving production in wells | Joseph A. Zierolf | 2007-10-16 |
| 7228906 | Propellant ignition assembly and process | David S. Wesson | 2007-06-12 |
| 6761219 | Casing conveyed perforating process and apparatus | Eldon G. Williams, Jr. | 2004-07-13 |
| 6536524 | Method and system for performing a casing conveyed perforating process and other operations in wells | — | 2003-03-25 |
| 6386288 | Casing conveyed perforating process and apparatus | Eldon G. Williams, Jr. | 2002-05-14 |
| 6367845 | Control line coupling and tubular string-control line assembly employing same | Gregory K. Otten | 2002-04-09 |