BOLT TECHNOLOGY CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS 2105
 
  
 
F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR 144
 
  
 
G01V GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS 179

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5432757 Large-diameter, cylinder-shuttle seismic airgun method, apparatus and towing systemJan 12, 94Jul 11, 95[H04R, G01V]
5315917 Monoport airgun for seismic exploration having discharge port extending continuously for 360 degree around its axisNov 09, 92May 31, 94[H04R, F15B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6612396 Controlled-polarization marine seismic shear-wave sourceExpiredOct 02, 00Sep 02, 03[G01V]
6464035 Streamlined, readily towable marine seismic energy source for creating intense swept-frequency and pulse-coded signals in a body of waterExpiredNov 09, 00Oct 15, 02[G01V]
5163541 Mechanism useful as a slip clutch or brakeExpiredFeb 18, 92Nov 17, 92[F16D]
5037354 Mechanism useful as a slip clutch or brakeExpiredJul 10, 89Aug 06, 91[F16D]
4939704 Method, system and apparatus producing powerful seismic energy impulses by implosion useable in wells in the earthExpiredMay 18, 89Jul 03, 90[G01V]
4880407 Cone clutchExpiredFeb 16, 88Nov 14, 89[F16D]
4858718 Tube-wave attenuation method, system and apparatus for use with an inpulsive seismic energy source in liquid-containing wellsExpiredApr 14, 87Aug 22, 89[G01V]
4798261 Small powerful hydro gunExpiredJul 03, 86Jan 17, 89[G01V]
4779245 Long-life, low-maintenance air gun/hydro gunExpiredAug 06, 85Oct 18, 88[H04R, G01V]
4754443 Airgun having shaft-bearing-guided shuttle and capable of fast repitition self-firingExpiredNov 15, 84Jun 28, 88[A47L, H04R, G01V]
4739859 Method and apparatus for reducing the stretch of an elastomeric diaphragm of a land seismic sourceExpiredApr 10, 86Apr 26, 88[G01V]
4723230 High ambient liquid pressure-resistant electrical connectorExpiredAug 13, 86Feb 02, 88[G01V]
4712641 Method and system for generating shear waves and compression waves in the earth for seismic surveyingExpiredSep 21, 84Dec 15, 87[H04R, G01V]
4712202 Method and apparatus for converting an air gun into a hydro gun for marine seismic impulse generationExpiredDec 12, 84Dec 08, 87[G01V]
4608675 Land seismic source method and apparatusExpiredJun 29, 81Aug 26, 86[G01V]
4599712 Modular airgun array method, apparatus and systemExpiredMar 15, 83Jul 08, 86[H04R, G01V]
4597464 Method and system for well velocity shooting and vertical seismic profilingExpiredMay 25, 82Jul 01, 86[G01V]
4472794 Sleeve shuttle air gunExpiredJun 01, 81Sep 18, 84[G01V]
4383582 Bouncer type pile driverExpiredApr 15, 81May 17, 83[E02D]
4377355 Quiet bouncer driver thruster method with pressurized air chamber encircling massive bouncing pistonExpiredJul 31, 79Mar 22, 83[E02D]

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