| 9571326 |
Method and apparatus for high-speed data transfer employing self-synchronizing quadrature amplitude modulation |
Roger B. Shaffer |
2017-02-14 |
| 8841912 |
Pre-amplifier and mixer circuitry for a locator antenna |
— |
2014-09-23 |
| 8717028 |
Spring clips for use with locating transmitters |
Ray Merewether, Mark S. Olsson, Jeffrey A. Prsha, Jan Soukup, David A. Cox +5 more |
2014-05-06 |
| 8400154 |
Locator antenna with conductive bobbin |
Mark S. Olsson, Ryan B. Levin, Ray Merewether |
2013-03-19 |
| 8395661 |
Pipe inspection system with selective image capture |
Mark S. Olsson, Michael J. Martin, Ray Merewether, Tran M. Nguyen |
2013-03-12 |
| 8013610 |
High-Q self tuning locating transmitter |
Ray Merewether, Mark S. Olsson, Jeffrey A. Praha, Jan Soukup, David A. Cox +5 more |
2011-09-06 |
| 7969151 |
Pre-amplifier and mixer circuitry for a locator antenna |
— |
2011-06-28 |
| 4312064 |
Modified vestigial side band transmission system |
Paul H. Thibodeau, Guy M. Campbell, Theodore M. Stump |
1982-01-19 |
| 4292599 |
Low pass active filter |
— |
1981-09-29 |
| 4276651 |
Clock circuitry for a data communication system |
William R. Dirkes, Manohar A. Juglekar, James C. Secora, Michael A. Stephen |
1981-06-30 |
| 4229822 |
Data detector for a data communication system |
— |
1980-10-21 |
