Issued Patents 2017
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9798032 | Locating arrangement and method using boring tool and cable locating signals | Albert W. Chau, John E. Mercer | 2017-10-24 |
| 9777567 | Advanced steering tool system, method and apparatus | Albert W. Chau, Rudolf Zeller, John E. Mercer | 2017-10-03 |
| 9683436 | Flux plane locating in an underground drilling system | Albert W. Chau, John E. Mercer | 2017-06-20 |
| 9581717 | Receiver using an approximated dipole signal | John E. Mercer, Albert W. Chau, Rudolf Zeller | 2017-02-28 |