Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12331616 | System and method for creating pressure waves in a well | Pierre Ramondenc, Charles Kearney | 2025-06-17 |
| 12241314 | Swivel system for downhole well tool orientation | — | 2025-03-04 |
| 11959362 | System and method for creating pressure waves in a well | Pierre Ramondenc, Charles Kearney | 2024-04-16 |
| 11899243 | System and method for joining fiber optic cables | Zhanke Liu, Shrividya Sridharan | 2024-02-13 |
| 11821269 | Swivel system for downhole well tool orientation | — | 2023-11-21 |
| 11512546 | Coiled tubing electronically controlled multilateral access of extended reach wells | Rich Christie, Luis Silva, Jordi Juan Segura Dominquez, Afsal Areepetta Mannil | 2022-11-29 |
| 11203901 | Radial drilling link transmission and flex shaft protective cover | Donald Cardon, Bill DuBose, Alexander Rudnik, Harold Steve Bissonnette | 2021-12-21 |
| 10435956 | Rotary shouldered tool joint with non-rotating connection means | Rod Shampine, Simon Mattias Flander | 2019-10-08 |
| 9435172 | Compression-actuated multi-cycle circulation valve | L. Michael McKee, Robert Bucher, Mohammad Hajjari | 2016-09-06 |
| 9133694 | Nozzle selective perforating jet assembly | Victor Lyashkov | 2015-09-15 |
| 7357177 | Restriction tolerant packer cup | Michael G. Garwood, Frank Espinosa | 2008-04-15 |
| 7090020 | Multi-cycle dump valve | Stephen D. Hill, Robert Bucher, L. Michael McKee, Michael G. Gay | 2006-08-15 |
| 6668938 | Cup packer | Randolph J. Sheffield, David Milton Eslinger, Jose Hurtado | 2003-12-30 |
| 6655461 | Straddle packer tool and method for well treating having valving and fluid bypass system | David Milton Eslinger, Randolph J. Sheffield | 2003-12-02 |
| 6439313 | Downhole machining of well completion equipment | Hubertus V. Thomeer, James M. Costley, Randolph J. Sheffield, David Milton Eslinger, Marc Allcorn | 2002-08-27 |
| 6425443 | Pressure compensated disconnect system and method | Stephen D. Hill, James M. Costley, David Milton Eslinger, Randolph J. Sheffield | 2002-07-30 |
| 5931242 | Jarring tool enhancer | — | 1999-08-03 |
| 5906239 | Jarring tool | — | 1999-05-25 |