KEARFOTT CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
G01C MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY 3102
 
 
 
G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT 255

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6032531 Micromachined acceleration and coriolis sensorAug 04, 97Mar 07, 00[G01C]
5656778 Micromachined acceleration and coriolis sensorApr 24, 95Aug 12, 97[G01P, G01C]
5487304 Superconducting dual junction gyroscope apparatusAug 17, 93Jan 30, 96[G01P]
5416583 Quantum well bias mirror for phase modulation in a ring laser gyroscopeJul 30, 93May 16, 95[G01C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5359413 System for substantially eleminating lock-in in a ring laser gyroscopeExpiredJan 13, 92Oct 25, 94[G01C]
4888705 System for measuring the position of vibrating objectExpiredOct 26, 87Dec 19, 89[G01C]
4886364 Ring laser gyroscope beam combiner for separating and combining circulating laser beams for power and fringe pattern detectionsExpiredApr 06, 87Dec 12, 89[G01C]
4877311 Laser power monitoring optics for a ring laser gyroscopeExpiredJan 19, 88Oct 31, 89[G01C]
4865452 Beam combiner assembly for ring laser gyroscopeExpiredAug 31, 88Sep 12, 89[G01B]
4861161 Method of constructing a moment insensitive pathlength control mirror assembly for a ring laser gyroscopeExpiredMar 18, 88Aug 29, 89[G01C, H01S]
4856901 Velocity control system using piezoelectric transducersExpiredMay 04, 88Aug 15, 89[B06B, H02N, G01C]
4804875 Monolythic resonator vibrating beam accelerometerExpiredSep 16, 82Feb 14, 89[H01L]
4781462 Path length control signal derivation circuit for a laser angular rate sensorExpiredFeb 09, 87Nov 01, 88[G01C]
4761743 Dynamic system analysis in a vibrating beam accelerometerExpiredDec 02, 85Aug 02, 88[G01P]
4760299 Distortion free synchroExpiredJun 11, 87Jul 26, 88[H02K, G01C, F16F]
4729243 Mass-flow measuring instrumentExpiredMay 05, 86Mar 08, 88[G01F]
4696503 Pneumatic actuated cam driven parallel gripperExpiredOct 27, 86Sep 29, 87[B25J]
4691323 Path length controller for ring laser gyroscopeExpiredJun 11, 84Sep 01, 87[H01S, G01B]
4658174 Vibrating beam force transducer with angled isolator springsExpiredMar 20, 86Apr 14, 87[H01L]
4658175 Vibrating beam force transducer with A-frame beam root and frequency adjusting meansExpiredMar 26, 86Apr 14, 87[H01L]
4656383 Vibrating beam force transducer with single isolator springExpiredFeb 14, 86Apr 07, 87[H01L]

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