Issued Patents 2021
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |