Issued Patents All Time
Showing 101–109 of 109 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6496008 | Flux plane locating in an underground drilling system | Albert W. Chau, John E. Mercer | 2002-12-17 |
| 6457537 | Mapping tool for tracking and/or guiding an underground boring tool | John E. Mercer, Peter H. Hambling, Rudolf Zeller, Shiu S. Ng, Lloyd A. Moore | 2002-10-01 |
| 6454023 | Mapping tool for tracking and/or guiding an underground boring tool | John E. Mercer, Peter H. Hambling, Rudolf Zeller, Shiu S. Ng, Lloyd A. Moore | 2002-09-24 |
| 6364035 | Establishing positions of locating field detectors and path mapping in underground boring tool applications | Peter H. Hambling, John E. Mercer, Lloyd A. Moore, Shiu S. Ng, Rudolf Zeller | 2002-04-02 |
| 6285190 | Skin depth compensation in underground boring applications | John E. Mercer, Shiu S. Ng | 2001-09-04 |
| 6250402 | Establishing positions of locating field detectors and path mappings in underground boring tool applications | Peter H. Hambling, John E. Mercer, Lloyd A. Moore, Shiu S. Ng, Rudolf Zeller | 2001-06-26 |
| 6095260 | System, arrangements and associated methods for tracking and/or guiding an underground boring tool | John E. Mercer, Peter H. Hambling, Rudolf Zeller, Shiu S. Ng, Lloyd A. Moore | 2000-08-01 |
| 6047783 | Systems, arrangements and associated methods for tracking and/or guiding an underground boring tool | John E. Mercer, Peter H. Hambling, Rudolf Zeller, Shiu S. Ng, Lloyd A. Moore | 2000-04-11 |
| 6035951 | System for tracking and/or guiding an underground boring tool | John E. Mercer, Peter H. Hambling, Rudolf Zeller, Shiu S. Ng, Lloyd A. Moore | 2000-03-14 |