Issued Patents All Time
Showing 226–250 of 273 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6364035 | Establishing positions of locating field detectors and path mapping in underground boring tool applications | Guenter W. Brune, Peter H. Hambling, Lloyd A. Moore, Shiu S. Ng, Rudolf Zeller | 2002-04-02 |
| 6351892 | Orientation sensor utilizing intra-pattern property measurements | Rudolf Zeller | 2002-03-05 |
| 6344904 | Arrangement for reading from and/or writing to flexible sheet media in a curved configuration and method | — | 2002-02-05 |
| 6285190 | Skin depth compensation in underground boring applications | Guenter W. Brune, Shiu S. Ng | 2001-09-04 |
| 6279668 | Boring tool control using remote locator including a command generation arrangement and method | — | 2001-08-28 |
| 6250402 | Establishing positions of locating field detectors and path mappings in underground boring tool applications | Guenter W. Brune, Peter H. Hambling, Lloyd A. Moore, Shiu S. Ng, Rudolf Zeller | 2001-06-26 |
| 6232780 | Underground locating using a locating signal transmitter configured with a single antenna | — | 2001-05-15 |
| 6223826 | Auto-extending/retracting electrically isolated conductors in a segmented drill string | Albert W. Chau | 2001-05-01 |
| 6191585 | Tracking the positional relationship between a boring tool and one or more buried lines using a composite magnetic signal | Albert W. Chau | 2001-02-20 |
| 6160401 | Boring technique using locate point measurements for boring tool depth prediction | — | 2000-12-12 |
| 6095260 | System, arrangements and associated methods for tracking and/or guiding an underground boring tool | Peter H. Hambling, Rudolf Zeller, Shiu S. Ng, Guenter W. Brune, Lloyd A. Moore | 2000-08-01 |
| 6079506 | Boring tool control using remote locator | — | 2000-06-27 |
| 6066955 | Orientation sensor especially suitable for use in an underground boring device | Rudolf Zeller | 2000-05-23 |
| 6057687 | Two mode boring tool guiding system and method | — | 2000-05-02 |
| 6047783 | Systems, arrangements and associated methods for tracking and/or guiding an underground boring tool | Peter H. Hambling, Rudolf Zeller, Shiu S. Ng, Guenter W. Brune, Lloyd A. Moore | 2000-04-11 |
| 6035951 | System for tracking and/or guiding an underground boring tool | Peter H. Hambling, Rudolf Zeller, Shiu S. Ng, Guenter W. Brune, Lloyd A. Moore | 2000-03-14 |
| 6014026 | Boring technique for using locate point measurements for boring tool depth prediction | — | 2000-01-11 |
| 6008651 | Orientation sensor arrangement and method for use in a system for monitoring the orientation of an underground boring tool | — | 1999-12-28 |
| 6002258 | Method for locating a boring tool | — | 1999-12-14 |
| 5990682 | Method for determining the depth of an in-ground boring tool | — | 1999-11-23 |
| 5990683 | Method and arrangement for locating a boring tool using a three-antennae vector sum | — | 1999-11-23 |
| 5961252 | Underground utility installation tension monitoring arrangement and method | Peter H. Hambling | 1999-10-05 |
| 5933008 | Boring technique using locate point measurements for boring tool depth determination | — | 1999-08-03 |
| 5926025 | Method of finding an above-ground point in relation to an in-ground boring tool | — | 1999-07-20 |
| 5914602 | System including an arrangement for tracking the positional relationship between a boring tool and one or more buried lines and method | — | 1999-06-22 |