DIGICOURSE, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01V GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS 575
 
  
 
B63G OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS 314
 
  
 
G01S RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES3106
 
  
 
B63B SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 137
 
  
 
G01C MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY 1104
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 1119
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 1106
 
  
 
H04B TRANSMISSION 1209

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6292436 Underwater cable arrangements, internal devices for use in an underwater cable, and methods of connecting and internal device to a stress member of an underwater cableSep 28, 98Sep 18, 01[G01V]
6091670 Underwater cable arrangement and coil support arrangement for an underwater cableMar 20, 98Jul 18, 00[G01V]
6031789 Magnetic drive subassembly in a depth control deviceSep 03, 97Feb 29, 00[H02K]
6016286 Depth control device for an underwater cableJun 10, 98Jan 18, 00[G01V]
5949214 Rechargeable battery packNov 04, 97Sep 07, 99[H02J]
5937782 Underwater device with a sacrificial latch mechanismOct 15, 97Aug 17, 99[B63G, B63B]
5529011 Connector for underwater cablesFeb 23, 95Jun 25, 96[B63G]
5507243 Connector for underwater cablesFeb 23, 94Apr 16, 96[B63G]
5359575 Underwater pulse tracking systemSep 08, 93Oct 25, 94[G01S]
5321668 Hydroacoustic ranging method using bottom reflectionsMay 24, 93Jun 14, 94[G01S]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5709964 Modular battery packExpiredMar 19, 96Jan 20, 98[H01N]
5418757 Long life battery operated acoustic underwater buoy release systemExpiredJun 07, 94May 23, 95[H04B]
5378864 Non-resettable, pressure-actuated switchExpiredJun 09, 93Jan 03, 95[H01H]
5105548 Apparatus and method for determining azimuth, pitch and rollExpiredDec 28, 90Apr 21, 92[E01C]
5031129 Parallel pseudo-random generator for emulating a serial pseudo-random generator and method for carrying out sameExpiredMay 12, 89Jul 09, 91[G06F]
5010653 Apparatus and method for determining azimuth, pitch and rollExpiredOct 20, 89Apr 30, 91[G01C]
4912684 Seismic streamer communication systemExpiredFeb 29, 88Mar 27, 90[G01V]
4843865 Method of calibrating a compass headingExpiredFeb 29, 88Jul 04, 89[G01C]
4725995 System for removably housing and aligning components in a towed arrayExpiredMar 05, 84Feb 16, 88[G01J, H04R]
4720631 Electro-optical compass card wherein transmissive member has random patterns that repeat for particular rotational positionsExpiredDec 12, 85Jan 19, 88[G01D]
4711194 Streamer interface adapter cable mounted levelerExpiredJan 11, 85Dec 08, 87[B63G]
4709355 Controller for marine seismic cableExpiredJun 18, 84Nov 24, 87[G01V]
4698912 Magnetic compass calibrationExpiredDec 11, 85Oct 13, 87[G01C]
4671120 Combined heading and depth sensorExpiredApr 25, 83Jun 09, 87[G01C, G01F]
4631711 System for removably housing and aligning components in a towed arrayExpiredNov 24, 82Dec 23, 86[H04R, G01V]
4611171 Location indicator for a marine seismic cable comprising operator controlled saturable core magnetometersExpiredJun 07, 83Sep 09, 86[G01C, G01R, G01V]
4503621 Solid state compassExpiredDec 08, 82Mar 12, 85[G01C]
4471534 Remote reading compass with 360 degree roll capabilityExpiredNov 24, 82Sep 18, 84[G01C]
4443795 Remote indicator for displaying transmitted data by angular displacementExpiredNov 21, 79Apr 17, 84[G08C]
4425716 Floating non-gimballed compassExpiredAug 13, 81Jan 17, 84[G01C]

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