Issued Patents 2021
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11162309 | Compensated top drive unit and elevator links | — | 2021-11-02 |
| 11162310 | Autonomous connection makeup and evaluation | Martin Helms, Karsten Heidecke, Rainer Ruehmann, Michael Wiedecke | 2021-11-02 |
| 11149503 | Compensation system for a tong assembly | — | 2021-10-19 |
| 11118429 | Control system for hydrocarbon recovery tools | Michael Wiedecke, Carlo Hoelterling, Frank Wern | 2021-09-14 |
| 11085253 | Tong assembly with door position sensors | Heidi N. Cline, John D. Hooker, II, Karsten Heidecke, Michael Wiedecke | 2021-08-10 |
| 11060381 | Tong cassette positioning device | Ernst Fuehring | 2021-07-13 |