Issued Patents 2016
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9519074 | Flux plane locating in an underground drilling system | Albert W. Chau, John E. Mercer | 2016-12-13 |
| 9513397 | Tone detection apparatus and method | John E. Mercer | 2016-12-06 |
| 9507046 | Locating arrangement and method using boring tool and cable locating signals | Albert W. Chau, John E. Mercer | 2016-11-29 |
| 9422804 | Advanced underground homing system, apparatus and method | John E. Mercer, Albert W. Chau | 2016-08-23 |
| 9371725 | Boring tool tracking fundamentally based on drill string length, pitch and roll | James W. Burrows, John E. Mercer | 2016-06-21 |
| 9360579 | Advanced steering tool system, method and apparatus | Albert W. Chau, Rudolf Zeller, John E. Mercer | 2016-06-07 |
| 9310507 | Tracking positions of personnel, vehicles, and inanimate objects | Rudolf Zeller, Albert W. Chau, John E. Mercer | 2016-04-12 |
| 9291738 | Flux plane locating in an underground drilling system | Albert W. Chau, John E. Mercer | 2016-03-22 |
| 9261621 | Locating arrangement and method using boring tool and cable locating signals | Albert W. Chau, John E. Mercer | 2016-02-16 |
| 9244189 | Advanced steering tool system, method and apparatus | Albert W. Chau, Rudolf Zeller, John E. Mercer | 2016-01-26 |