Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12312944 | Fretting-wear resistant beacon lid | — | 2025-05-27 |
| 12286843 | Dual pipe drill head quick interchange joint | Travis W. Woodson, Joseph G. Greenlee | 2025-04-29 |
| 12270263 | Dual rod assembly and collar installation method | — | 2025-04-08 |
| 12055014 | Sealing system for downhole tool | — | 2024-08-06 |
| 11885223 | Method to prevent dual rod drill string drag | Joseph G. Greenlee, Joe G. Worlow | 2024-01-30 |
| 11851956 | Dual rod assembly and collar installation method | — | 2023-12-26 |
| 11828176 | Dual-member pipe assembly | Joseph G. Greenlee | 2023-11-28 |
| 11753874 | Insert for use with dual-member pipe joint | — | 2023-09-12 |
| 11661796 | Sealing system for downhole tool | — | 2023-05-30 |
| 11613942 | Torque-dependent oscillation of a dual-pipe inner section | Aleksander S. Wolfe, Kyle D. James | 2023-03-28 |
| 11578540 | Dual pipe drill head quick interchange joint | Travis W. Woodson, Joseph G. Greenlee | 2023-02-14 |
| 11536094 | Dual rod assembly and collar installation method | — | 2022-12-27 |
| 11208851 | Dual pipe drill head quick interchange joint | Travis W. Woodson, Joseph G. Greenlee | 2021-12-28 |
| 11085239 | Sealing system for downhole tool | — | 2021-08-10 |
| 11053747 | Insert for use with dual-member pipe joint | — | 2021-07-06 |
| 11053756 | Torque-dependent oscillation of a dual-pipe inner pipe section | Aleksander S. Wolfe, Kyle D. James | 2021-07-06 |
| 11015392 | Dual member pipe joint for a dual member drill string | Cody L. Sewell | 2021-05-25 |
| 11002076 | Dual-member pipe assembly | Joseph G. Greenlee | 2021-05-11 |
| 10851599 | Horizontal directional drill pipe drive connection with locking feature | Floyd R. Gunsaulis, Max A. Metcalf | 2020-12-01 |
| 10808461 | Angular offset drilling tool | — | 2020-10-20 |
| 10760354 | Collar with stepped retaining ring groove | Dirk A. Wilson | 2020-09-01 |
| 10538969 | Stacked-plate reamer | Travis W. Woodson, Chapman P. Hancock | 2020-01-21 |
| 10487595 | Collar with stepped retaining ring groove | Dirk A. Wilson | 2019-11-26 |
| 10260287 | Dual-member pipe assembly | Joseph G. Greenlee | 2019-04-16 |
| 10161199 | Dual member pipe joint for a dual member drill string | Cody L. Sewell | 2018-12-25 |