Issued Patents 2021
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11136881 | Advanced inground operations, system, communications and associated apparatus | Benjamin John Medeiros, Craig Caswell | 2021-10-05 |
| 11118447 | Directional drilling communication protocols, apparatus and methods | Loc Viet Lam, Scott Phillips | 2021-09-14 |
| 11105161 | Drill string adapter and method for inground signal coupling | Benjamin John Medeiros | 2021-08-31 |
| 11047896 | Portable device with electromagnetic noise measurement at multiple frequencies | Loc Viet Lam | 2021-06-29 |
| 11035218 | Advanced steering tool system, method and apparatus | Guenter W. Brune, Rudolf Zeller, John E. Mercer | 2021-06-15 |
| 11035221 | Advanced drill string inground isolator housing in an MWD system and associated method | Kenneth J. Theimer | 2021-06-15 |
| 11002623 | Tension monitoring arrangement and method | Rudolf Zeller, John E. Mercer, Charles Yu Yat Tsang | 2021-05-11 |
| 10969399 | Advanced mechanical shock resistance for an accelerometer in an inground device and associated methods | Kenneth J. Theimer, Jason Pothier | 2021-04-06 |
| 10954719 | Multimode steering and homing system, method and apparatus | Tim Shaw, John E. Mercer | 2021-03-23 |
| 10901106 | Distinguishing false signals in cable locating | John E. Mercer | 2021-01-26 |
| 10895145 | Advanced underground homing system, apparatus and method | Guenter W. Brune, John E. Mercer | 2021-01-19 |