Issued Patents All Time
Showing 51–64 of 64 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848156 | Frame assembly and dither drive for a coriolis rate sensor | — | 1989-07-18 |
| 4821572 | Multi axis angular rate sensor having a single dither axis | — | 1989-04-18 |
| 4814680 | Servo loop control for a coriolis rate sensor dither drive | — | 1989-03-21 |
| 4812977 | Borehole survey system utilizing strapdown inertial navigation | — | 1989-03-14 |
| 4811602 | Frame assembly and dither drive for a coriolis rate sensor | — | 1989-03-14 |
| 4799385 | Angular rate sensor with phase shift correction | Rex B. Peters | 1989-01-24 |
| 4786861 | Frequency counting apparatus and method | Charles K. Lee | 1988-11-22 |
| 4782700 | Frame assembly and dither drive for a coriolis rate sensor | — | 1988-11-08 |
| 4672752 | Method of determining the difference in borehole azimuth at successive points | Rex B. Peters, Kurt Steinke | 1987-06-16 |
| 4614040 | Borehole survey system and method of determining the difference in borehole azimuth at successive points | Rex B. Peters, Kurt Steinke | 1986-09-30 |
| 4459759 | Angular rate and position transducer for borehole survey instrument | — | 1984-07-17 |
| 4434654 | Borehole orientation detection system employing polarized radiation | Rex B. Peters, Kurt Steinke | 1984-03-06 |
| 4428123 | Instrument mounting | John A. Morrow | 1984-01-31 |
| 4399692 | Borehole survey apparatus utilizing accelerometers and probe joint measurements | Rex B. Peters | 1983-08-23 |