Issued Patents All Time
Showing 151–175 of 273 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7472761 | Boring tool tracking fundamentally based on drill string length, pitch and roll | James W. Burrows, Guenter W. Brune | 2009-01-06 |
| 7466135 | Boring technique using locate point measurements for boring tool depth prediction | — | 2008-12-16 |
| 7443359 | Locating technique and apparatus using an approximated dipole signal | Guenter W. Brune, Albert W. Chau, Rudolf Zeller | 2008-10-28 |
| 7425829 | Tracking positions of personnel, vehicles, and inanimate objects | Rudolf Zeller, Guenter W. Brune, Albert W. Chau | 2008-09-16 |
| 7403013 | Boring tool tracking/guiding system and method with unconstrained target location geometry | Guenter W. Brune, Albert W. Chau | 2008-07-22 |
| 7403014 | Tracking the positional relationship between a boring tool and one or more buried lines using a composite magnetic signal | Albert W. Chau | 2008-07-22 |
| 7397249 | Apparatus for distinguishing false signals in cable locating | Albert W. Chau | 2008-07-08 |
| 7391216 | Locating arrangement and method using boring tool and cable locating signals | Guenter W. Brune, Albert W. Chau | 2008-06-24 |
| 7347280 | 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 | 2008-03-25 |
| 7345486 | Position and orientation locator/monitor | — | 2008-03-18 |
| 7343816 | Tension monitoring arrangement and method | Albert W. Chau, Rudolf Zeller, Charles Yu Yat Tsang | 2008-03-18 |
| 7327144 | Multi-frequency boring tool locating system and method | Guenter W. Brune | 2008-02-05 |
| 7309990 | Flux orientation locating in a drilling system | — | 2007-12-18 |
| 7306053 | Boring tool tracking fundamentally based on drill string length, pitch and roll | James W. Burrows, Guenter W. Brune | 2007-12-11 |
| 7304479 | Flux plane locating in an underground drilling system | Guenter W. Brune, Albert W. Chau | 2007-12-04 |
| 7253628 | Tracking the positional relationship between a boring tool and one or more buried lines using a composite magnetic signal | Albert W. Chau | 2007-08-07 |
| 7225885 | Boring tool control using remote locator | — | 2007-06-05 |
| 7218116 | Boring tool tracking/guiding system and method with unconstrained target location geometry | Guenter W. Brune, Albert W. Chau | 2007-05-15 |
| 7212319 | Arrangement for reading from and/or writing to flexible sheet media in a curved configuration and method | — | 2007-05-01 |
| 7209093 | Locating technique and apparatus using an approximated dipole signal | Guenter W. Brune, Albert W. Chau, Rudolf Zeller | 2007-04-24 |
| 7176690 | Flux plane locating in an underground drilling system | Guenter W. Brune, Albert W. Chau | 2007-02-13 |
| 7167005 | Position and orientation locator/monitor | — | 2007-01-23 |
| 7165632 | Boring tool tracking fundamentally based on drill string length, pitch and roll | James W. Burrows, Guenter W. Brune | 2007-01-23 |
| 7159672 | Mapping tool for tracking and/or guiding an underground boring tool | Peter H. Hambling, Rudolf Zeller, Shiu S. Ng, Guenter W. Brune, Lloyd A. Moore | 2007-01-09 |
| 7154273 | Flux orientation locating in a drilling system | — | 2006-12-26 |