Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |