Issued Patents 2002
Showing 1–4 of 4 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 |