Issued Patents All Time
Showing 101–125 of 273 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8651425 | Emergency collective actuator and method for a helicopter | Mark Marvin | 2014-02-18 |
| 8622150 | Boring tool tracking fundamentally based on drill string length, pitch and roll | James W. Burrows, Guenter W. Brune | 2014-01-07 |
| 8499646 | Utility pull-back tension monitoring arrangement with sensor output compensation and method | Albert W. Chau, Rudolf Zeller, Charles Yu Yat Tsang | 2013-08-06 |
| 8477389 | Arrangement for reading from and/or writing to flexible sheet media in a curved configuration and method | — | 2013-07-02 |
| 8393454 | Drive mechanism and method | — | 2013-03-12 |
| 8393414 | 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 | 2013-03-12 |
| 8381836 | Advanced underground homing system, apparatus and method | Guenter W. Brune, Albert W. Chau | 2013-02-26 |
| 8360369 | Emergency collective actuator and method for a helicopter | Mark Marvin | 2013-01-29 |
| 8353365 | Boring tool control using remote locator | — | 2013-01-15 |
| 8342262 | Boring tool tracking fundamentally based on drill string length, pitch and roll | James W. Burrows, Guenter W. Brune | 2013-01-01 |
| 8264419 | Locating technique and apparatus using an approximated dipole signal | Guenter W. Brune, Albert W. Chau, Rudolf Zeller | 2012-09-11 |
| 8189240 | Arrangement for reading from and/or writing to flexible sheet media in a curved configuration and method | — | 2012-05-29 |
| 8188747 | Method for timestamping boring tool locations | — | 2012-05-29 |
| 8188746 | Tracking the positional relationship between a boring tool and at least one buried lines | Albert W. Chau | 2012-05-29 |
| 8172057 | Drive mechanism and method | — | 2012-05-08 |
| 8157023 | Boring tool tracking fundamentally based on drill string length, pitch and roll | James W. Burrows, Guenter W. Brune | 2012-04-17 |
| 8080998 | Distinguishing false signals in cable locating using a reference signal | Albert W. Chau | 2011-12-20 |
| 8042407 | Tension monitoring arrangement and method | Albert W. Chau, Rudolf Zeller, Charles Yu Yat Tsang | 2011-10-25 |
| 8025109 | Method for establishing the positions of a transmitter and detector in a region | Guenter W. Brune, Peter H. Hambling, Lloyd A. Moore, Shiu S. Ng, Rudolf Zeller | 2011-09-27 |
| 7990152 | Locating arrangement and method using boring tool and cable locating signals | Guenter W. Brune, Albert W. Chau | 2011-08-02 |
| 7990150 | Multifrequency locating arrangement with frequency designation | Guenter W. Brune | 2011-08-02 |
| 7973982 | Arrangement for reading from and/or writing to flexible sheet media in a curved configuration and method | — | 2011-07-05 |
| 7967080 | Boring tool tracking fundamentally based on drill string length, pitch and roll | James W. Burrows, Guenter W. Brune | 2011-06-28 |
| 7960973 | Tracking positions of personnel, vehicles, and inanimate objects | Rudolf Zeller, Guenter W. Brune, Albert W. Chau | 2011-06-14 |
| 7956614 | Flux plane locating in an underground drilling system | Guenter W. Brune, Albert W. Chau | 2011-06-07 |