CEGELEC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 2445
 
  
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 2131
 
  
 
B61K OTHER AUXILIARY EQUIPMENT FOR RAILWAYS 112
 
  
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS198
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 1106
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 186
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 1284

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5923136 System for powering auxiliary equipment in a remotely-powered pumping stationAug 06, 97Jul 13, 99[H02K, H02P]
5752855 Branch connector device for a shielded cableJul 26, 96May 19, 98[H01R]
5575667 Junction box for connecting a plurality of screened cablesFeb 21, 95Nov 19, 96[H01R]
5551034 System for synchronizing replicated tasksJan 07, 94Aug 27, 96[G06F]
5488723 Software system having replicated objects and using dynamic messaging, in particular for a monitoring/control installation of redundant architectureJan 24, 94Jan 30, 96[G06F]
5483520 Method of broadcasting data by means of a data trainOct 20, 94Jan 09, 96[H04L]
5203089 Railroad vehicle for measuring the geometrical parameters of railroad trackJun 10, 91Apr 20, 93[B61K, G01B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6715370 Method of inspecting district heating pipesExpiredJan 29, 03Apr 06, 04[G01H, B08B]
6693425 Sensor having an electric coil and giant magnetoresistor for detecting defects in a componentExpiredOct 11, 02Feb 17, 04[G01N]
6534976 Device having active and reference coils for performing non-destructive inspection by eddy currentExpiredMar 16, 01Mar 18, 03[G01N]
6357310 Device for displacing a member inside an elongate tube from one end of the tubeExpiredJun 29, 00Mar 19, 02[F16H, G01D]
5848228 Method of ordering a plurality of messages from a plurality of sources and system for implementing the methodExpiredDec 26, 96Dec 08, 98[C06F]
5826080 Method of scheduling successive tasksExpiredAug 02, 95Oct 20, 98[G06F]
5773944 Electric machine control system including a torque smoothing deviceExpiredDec 12, 96Jun 30, 98[H02P]
5764230 Window manager suitable for multiple window workstationsExpiredOct 18, 94Jun 09, 98[G06F]
5606695 Method of scheduling successive tasks subject only to timing constraintsExpiredAug 02, 95Feb 25, 97[G06F]
5497259 Local area network with optical transmissionExpiredOct 13, 94Mar 05, 96[H04B, H04J]
5357417 Disturbance-limiting circuit of redundant type for regulation equipmentExpiredJun 25, 92Oct 18, 94[H02J]
5309123 Device for connecting a data communication network to a plurality of subscribersExpiredAug 21, 92May 03, 94[H03H]
5235657 Optical fiber tapping couplerExpiredFeb 14, 92Aug 10, 93[G02B]
5180314 Connector for shielded pair cable with grounding drain conductorExpiredSep 06, 91Jan 19, 93[H01R]
5082377 Optical fiber connector endpiece, a method of assembling it, and a method of connecting two optical fibers using such endpiecesExpiredJul 03, 90Jan 21, 92[G02B]
5044978 Cable connector block, in particular for a screened pairExpiredMay 29, 90Sep 03, 91[H01R]
5038355 Matrix of multiplexed synchronized counters for an integrated circuitExpiredApr 12, 90Aug 06, 91[G06F]
5023471 Testable input/output circuit for a load decoupled by a transformerExpiredDec 27, 89Jun 11, 91[H02J]
4829149 Sulfur hexafluoride high-tension circuit-breaker having high performance at any temperatureExpiredDec 31, 87May 09, 89[H01H]
4739137 High voltage sulfur hexafluoride circuit-breaker capable of operating at low outside temperaturesExpiredFeb 05, 87Apr 19, 88[H01H]

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