Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10995581 | Self-cleaning packer system | Mahendra Joshi, Jeffrey Potts, Reda El-Mahbes, Dewey Parker, Jr. | 2021-05-04 |
| 10260500 | Downhole dynamometer and method of operation | Xuele Qi, Cheng-Po Chen, Yizhen Lin, David Mulford Shaddock | 2019-04-16 |
| 9869157 | Reverse circulation cementing system for cementing a liner | Emile Edmund Sevadjian, Gary Allen Kohn, Arthur Stautzenberger, Richard Paul Noffke, Stephen Ross Maddux +3 more | 2018-01-16 |
| 6622798 | Method and apparatus for maintaining a fluid column in a wellbore annulus | Henry E. Rogers, Harold O. Treece | 2003-09-23 |
| 5829526 | Method and apparatus for placing and cementing casing in horizontal wells | Henry E. Rogers, David F. Laurel, Earl Webb, Kenneth G. Neal | 1998-11-03 |