| 5805195 |
Diode-less thermal print head and method of controlling same |
Naven C. Ho |
1998-09-08 |
| 4855745 |
High resolution analog-to-digital converter |
— |
1989-08-08 |
| 4704584 |
Instantaneous floating point amplifier |
— |
1987-11-03 |
| 4562559 |
Borehole acoustic telemetry system with phase shifted signal |
H. Eugene Sharp |
1985-12-31 |
| 4527261 |
Hiline interference eliminator |
— |
1985-07-02 |
| 4510585 |
Electronic filter |
Franklin W. Mayo |
1985-04-09 |
| 4490606 |
Transducer apparatus utilizing fiber optics for data transmission |
James F. Lockett, Jerry F. Janecka |
1984-12-25 |
| 4485563 |
Borehole survey instrument |
Harper E. Sharp, John W. Linn, III, Emil S. Macha |
1984-12-04 |
| 4480391 |
Borehole survey instrument control circuitry |
Harper E. Sharp |
1984-11-06 |
| 4394616 |
Cable break locator |
Edward M. Browne |
1983-07-19 |
| 4357577 |
Instantaneous floating point amplifier |
— |
1982-11-02 |
| 4320473 |
Borehole acoustic telemetry clock synchronization system |
Octavio A. Vela |
1982-03-16 |
| 4298970 |
Borehole acoustic telemetry system synchronous detector |
E. Neil Shawhan, Octavio A. Vela |
1981-11-03 |
| 4254481 |
Borehole telemetry system automatic gain control |
Octavio A. Vela |
1981-03-03 |