Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7289127 | Multi-conic gradient generation | Ralph Brunner | 2007-10-30 | $213,651,000 |
| 5157392 | Telemetry network for downhole multistation seismic recording tools | — | 1992-10-20 | $7,778,000 |
| 4999817 | Programmable gain control for rotating transducer ultrasonic tools | — | 1991-03-12 | $18,986,000 |
| 4808996 | Simultaneous digitizing apparatus for an acoustic tool | — | 1989-02-28 | $5,411,000 |
| 4797668 | Acoustic well logging system having multiplexed filter digitizing | — | 1989-01-10 | $4,653,000 |
| 4684947 | Simultaneous digitizing apparatus for an acoustic tool | — | 1987-08-04 | $10,581,000 |
| 4658383 | Automatic gain control of digitized full trace acoustic signal in a borehole | — | 1987-04-14 | $7,027,000 |
| 4446540 | Acoustic well logging with energy level detection | — | 1984-05-01 | $7,739,000 |