Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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, Guenter W. Brune | 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, Guenter W. Brune | 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, Guenter W. Brune | 2000-03-14 |