LG INDUSTRIAL SYSTEMS CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 2272
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 879
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 4443
 
  
 
H02B BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER 431
 
  
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 398
 
  
 
H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 399
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 2157
 
  
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 2196
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 282
 
  
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 2131

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7233465 Ground fault detection system and method for inverterNov 02, 04Jun 19, 07[H02H]
7227279 Phase deficiency display device for thermal magnetic type molded case circuit breakerDec 02, 03Jun 05, 07[H01H]
D527349 Power module for programmable logic controllerApr 21, 04Aug 29, 06[]
7079363 Hybrid DC electromagnetic contactorApr 02, 03Jul 18, 06[H01H]
7068037 Method of diagnosing inverter troubleMar 09, 04Jun 27, 06[G01R]
7053324 Switching mechanism for a manual motor starterDec 21, 04May 30, 06[H01H]
D520992 Central processing unit module for programmable logic controllerApr 28, 04May 16, 06[]
7002088 Handle apparatus for a manual motorDec 09, 04Feb 21, 06[H01H]
D511502 Breaker for electric railroad lineApr 18, 03Nov 15, 05[1303]
D506185 Circuit breaker for protecting motorApr 10, 03Jun 14, 05[1303]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7345858 Resistive superconducting fault current limiterExpiredSep 24, 04Mar 18, 08[H02H]
2005/0140,475 Interlocking apparatus of a leading under voltage trip mechanism for manual motor starterAbandonedDec 21, 04Jun 30, 05[H01H]
2005/0118,029 Apparatus and method for detecting fault of cooling fanAbandonedSep 30, 04Jun 02, 05[F04B]
6897757 Accessory device for manual motor starterExpiredDec 08, 03May 24, 05[H01F]
2004/0095,223 Thermal overload relayAbandonedOct 29, 03May 20, 04[H01H]
6693502 Air circuit breakerExpiredNov 30, 01Feb 17, 04[H01H]
2003/0190,058 Apparatus and method for measuring queue length of vehiclesAbandonedMar 24, 03Oct 09, 03[G06K]
2003/0176,941 Simultaneous starting apparatus of positioning decision module and method thereforAbandonedMar 13, 03Sep 18, 03[G05B]
2002/0033,380 Ornamental steel plate and manufacturing method thereforAbandonedNov 30, 01Mar 21, 02[B05D, B44C]
6340073 Elevator door systemExpiredDec 07, 99Jan 22, 02[B66B]
6193597 Coin discharging apparatusExpiredApr 28, 99Feb 27, 01[G07D]
6092639 Driven wheel passenger conveyorExpiredOct 21, 97Jul 25, 00[B65G, F16H, B66B]
6016902 Upper rail for passenger conveyorExpiredOct 22, 97Jan 25, 00[B65G]
5997423 Apparatus for controlling chain tensionExpiredNov 19, 97Dec 07, 99[B65G, F16H]
5975247 Elevator car call register apparatus and method thereofExpiredNov 26, 97Nov 02, 99[B66B]
5941152 Vise assembly for cutting machine and fabrication method thereofExpiredJun 19, 97Aug 24, 99[B26D]
5924544 Terminal rail system for escalatorExpiredMay 22, 97Jul 20, 99[B66B]
5899314 Terminal rail for passenger conveyorExpiredOct 22, 97May 04, 99[B65G]
5894917 Step combining system for escalatorExpiredDec 24, 97Apr 20, 99[B65G]
5892189 Apparatus and method for determining messages transmission period in an elevator group control systemExpiredOct 17, 97Apr 06, 99[B66B]

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