Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6668944 | Path mapping in underground boring tool applications | Guenter W. Brune, John E. Mercer, Lloyd A. Moore, Shiu S. Ng, Rudolf Zeller | 2003-12-30 |
| 6640907 | Mapping tool for tracking and/or guiding an underground boring tool | John E. Mercer, Rudolf Zeller, Shiu S. Ng, Guenter W. Brune, Lloyd A. Moore | 2003-11-04 |
| 6536538 | Establishing positions of locating field detectors and path mapping in underground boring tool applications | Guenter W. Brune, John E. Mercer, Lloyd A. Moore, Shiu S. Ng, Rudolf Zeller | 2003-03-25 |