Issued Patents All Time
Showing 76–100 of 273 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9310509 | Electronic time stamping apparatus as a part of a system for use with an inground transmitter | — | 2016-04-12 |
| 9291738 | Flux plane locating in an underground drilling system | Guenter W. Brune, Albert W. Chau | 2016-03-22 |
| 9274013 | Tension monitoring arrangement and method | Albert W. Chau, Rudolf Zeller, Charles Yu Yat Tsang | 2016-03-01 |
| 9272780 | Rotorcraft autopilot and methods | Nicolas Albion, Mark Bartel, Marc Feifel, Mark Marvin | 2016-03-01 |
| 9267575 | Drive mechanism and method | — | 2016-02-23 |
| 9261621 | Locating arrangement and method using boring tool and cable locating signals | Guenter W. Brune, Albert W. Chau | 2016-02-16 |
| 9244189 | Advanced steering tool system, method and apparatus | Guenter W. Brune, Albert W. Chau, Rudolf Zeller | 2016-01-26 |
| 9215343 | Arrangement for reading from and/or writing to flexible sheet media in a curved configuration and method | — | 2015-12-15 |
| 9150308 | Rotorcraft autopilot system, components and methods | Marc Feifel, Mark Marvin, Nicolas Albion | 2015-10-06 |
| 9133703 | Advanced steering tool system, method and apparatus | Guenter W. Brune, Albert W. Chau, Rudolf Zeller | 2015-09-15 |
| 9035656 | Tracking positions of personnel, vehicles, and inanimate objects | Rudolf Zeller, Guenter W. Brune, Albert W. Chau | 2015-05-19 |
| 8997890 | Boring tool control using remote locator | — | 2015-04-07 |
| 8910909 | Emergency collective actuator and method for a helicopter | Mark Marvin | 2014-12-16 |
| 8842345 | Arrangement for reading from and/or writing to flexible sheet media in a curved configuration and method | — | 2014-09-23 |
| 8786285 | Apparatus for monitoring a positional relationship between a boring tool and an inground line | Albert W. Chau | 2014-07-22 |
| 8766752 | Magnetic biasing apparatus | — | 2014-07-01 |
| 8754648 | Boring tool locating signal frequency tracking apparatus | Guenter W. Brune | 2014-06-17 |
| 8710844 | Electronic time stamping apparatus for use with an inground transmitter | — | 2014-04-29 |
| 8698501 | Method for distinguishing a locating signal from a false locating signal | Albert W. Chau | 2014-04-15 |
| 8686917 | Locating technique and apparatus using an approximated dipole signal | Guenter W. Brune, Albert W. Chau, Rudolf Zeller | 2014-04-01 |
| 8686731 | Tracking positions of personnel, vehicles, and inanimate objects | Rudolf Zeller, Guenter W. Brune, Albert W. Chau | 2014-04-01 |
| 8680864 | Flux plane locating in an underground drilling system | Guenter W. Brune, Albert W. Chau | 2014-03-25 |
| 8674700 | Locating arrangement and method using boring tool and cable locating signals | Guenter W. Brune, Albert W. Chau | 2014-03-18 |
| 8668030 | 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 | 2014-03-11 |
| 8659298 | Advanced steering tool system, method and apparatus | Guenter W. Brune, Albert W. Chau, Rudolf Zeller | 2014-02-25 |