| Patent | Date |
|---|
K.sub.ip cancellation in a pendulous silicon accelerometer
Grant 5,594,170 - Peters January 14, 1 | 1997-01-14 |
Method of making an electrode tip for a tunnel current sensing device
Grant 5,407,868 - Peters , et al. April 18, 1 | 1995-04-18 |
Coliolis rate sensor using tunnel-effect displacement sensor
Grant 5,285,686 - Peters February 15, 1 | 1994-02-15 |
Monolithic accelerometer with flexurally mounted force transducer
Grant 5,165,279 - Norling , et al. November 24, 1 | 1992-11-24 |
Low profile accelerometer
Grant 4,881,408 - Hulsing, II , et al. November 21, 1 | 1989-11-21 |
Translational accelerometer and accelerometer assembly method
Grant 4,872,342 - Hanson , et al. October 10, 1 | 1989-10-10 |
Matched pairs of force transducers
Grant 4,872,343 - Peters , et al. October 10, 1 | 1989-10-10 |
Apparatus and method for determining the position of a tool in a borehole
Grant 4,797,822 - Peters January 10, 1 | 1989-01-10 |
Apparatus and method for gravity correction in borehole survey systems
Grant 4,783,742 - Peters November 8, 1 | 1988-11-08 |
Pseudosinusoidal oscillator drive system
Grant 4,727,752 - Peters March 1, 1 | 1988-03-01 |
Synchronous FM digital detector
Grant 4,712,426 - Peters December 15, 1 | 1987-12-15 |
Vibrating beam accelerometer with velocity change output
Grant 4,712,427 - Peters December 15, 1 | 1987-12-15 |
Automatic continuous nulling of angular rate sensor
Grant 4,665,748 - Peters May 19, 1 | 1987-05-19 |
Borehole survey system and method of determining the difference in borehole azimuth at successive points
Grant 4,614,040 - Hulsing, II , et al. September 30, 1 | 1986-09-30 |
Angular base sensor utilizing parallel vibrating accelerometers
Grant 4,592,233 - Peters June 3, 1 | 1986-06-03 |
Counting apparatus and method for frequency sampling
Grant 4,541,105 - Lee , et al. September 10, 1 | 1985-09-10 |
Digital processor for use with an accelerometer based angular rate sensor
Grant 4,522,062 - Peters June 11, 1 | 1985-06-11 |
Accelerometer with beam resonator force transducer
Grant 4,517,841 - Peters , et al. May 21, 1 | 1985-05-21 |
Two axis angular rate and specific force sensor utilizing vibrating accelerometers
Grant 4,512,192 - Peters April 23, 1 | 1985-04-23 |
Angular rate sensor utilizing two vibrating accelerometers secured to a parallelogram linkage
Grant 4,510,802 - Peters April 16, 1 | 1985-04-16 |
Method for determining acceleration
Grant 4,467,651 - Peters , et al. August 28, 1 | 1984-08-28 |
Borehole orientation detection system employing polarized radiation
Grant 4,434,654 - Hulsing, II , et al. March 6, 1 | 1984-03-06 |
Borehole survey apparatus utilizing accelerometers and probe joint measurements
Grant 4,399,692 - Hulsing, II , et al. August 23, 1 | 1983-08-23 |
Acoustic transducer
Grant 3,890,513 - Barleen , et al. June 17, 1 | 1975-06-17 |
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