QED INTELLECTUAL PROPERTY SERVICES LIMITED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01F MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME 356
 
  
 
G09G ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION 2149
 
  
 
H01K ELECTRIC INCANDESCENT LAMPS 220
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 275
 
  
 
B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL 163
 
  
 
B60R VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR 1109
 
  
 
G01K MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR 145
 
  
 
G01L MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE 155
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 1158

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6121766 Current sensor assembliesOct 14, 98Sep 19, 00[G01R]
6092423 Tunnel pick-off vibrating rate sensorOct 28, 98Jul 25, 00[G01L]
6084337 Electrode structures with electrically insulative compressable annular support memberJul 20, 98Jul 04, 00[H01K]
6064126 Switches and switching systemsAug 24, 98May 16, 00[H02B, H01H]
6052268 Electrical apparatusAug 18, 99Apr 18, 00[H02H]
5977995 Computer system for displaying video and graphical dataNov 30, 95Nov 02, 99[G09G]
5943065 Video/graphics memory systemJul 21, 94Aug 24, 99[G09G]
RE36047 Multi-mode TDI/raster-scan television camera systemAug 02, 93Jan 19, 99[H04N]
5854731 Electrical apparatusDec 22, 97Dec 29, 98[H02H]
5844364 Incandescent light-emitting assembliesApr 04, 97Dec 01, 98[H01K]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6754633 Encoding a code signal into an audio or video signalExpiredJun 14, 01Jun 22, 04[G10L]
2002/0060,445 Biodegradable vehicle componentsAbandonedMar 26, 01May 23, 02[B60R]
6043113 Method of forming self-aligned thin film transistorExpiredMay 28, 98Mar 28, 00[H01L]
5995312 High capacity disk driveExpiredSep 07, 93Nov 30, 99[G11B]
5914829 Digital servo control system for use in disk drives, including calibrated controller for fixed-distance seeksExpiredJun 01, 95Jun 22, 99[G11B]
5914830 Digital servo control system including sample integrity tester for reducing effects of spurious sampled position valuesExpiredNov 25, 97Jun 22, 99[G11B]
5684650 Digital servo control system for use in disk drivesExpiredFeb 25, 94Nov 04, 97[G11B]
5680272 Digital servo control system for use in disk drivesExpiredJun 01, 95Oct 21, 97[G11B]
5677809 Digital servo control system for use in disk drives, having state space observer including integral compensatorExpiredJun 01, 95Oct 14, 97[G11B]
5675450 Digital servo control system for use in disk drives using driver saturation modelExpiredFeb 25, 94Oct 07, 97[G11B]
5650813 Panoramic time delay and integration video camera systemExpiredDec 21, 94Jul 22, 97[H04N]
5646797 Digital servo control system for use in disk drivesExpiredJul 07, 92Jul 08, 97[G11B]
5638230 Digital servo control system for use in disk drivesExpiredJun 01, 95Jun 10, 97[G11B]
5602689 Digital servo control system for use in disk drives, including sample integrity tester for reducing effects of spurious sampled position valuesExpiredJun 01, 95Feb 11, 97[G11B]
5440648 High speed defect detection apparatus having defect detection circuits mounted in the camera housingExpiredNov 19, 91Aug 08, 95[H04N, G01N]
5428392 Strobing time-delayed and integration video camera systemExpiredMay 10, 93Jun 27, 95[H04N]
5371434 Radiation-emitting devices having an array of active components in contact with a fluorescent layerExpiredFeb 23, 93Dec 06, 94[H01J]
5127744 Self-acting air bearing spindle for disk driveExpiredMar 30, 90Jul 07, 92[F16C]
5073853 Watchdog circuit for monitoring programs and detecting infinite loops using a changing multibit word for timer resetExpiredNov 02, 87Dec 17, 91[G06F]
5065013 Optical encoders using transmitted and reflected light detection having complementary outputExpiredSep 19, 90Nov 12, 91[G01D]

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