COMMONWEALTH EDISON COMPANY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A47B TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE 151
 
  
 
F16H GEARING199
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 1158
 
  
 
H02B BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER 134
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 176

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2014/0121,052 PULLEY SYSTEMOct 26, 12May 01, 14[F16H]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7636233 Multi-compartmental transformer and methods of maintenance thereforSep 29, 05Dec 22, 09[A47B, H02B, H05K]
5172067 Apparatus for determining DC resistance in high voltage winding with nonlinear resistance energy dissipation circuitMay 20, 91Dec 15, 92[G01R, H02H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0290,035 Manhole Flash ShieldAbandonedApr 01, 15Oct 06, 16[E06B]
6058353 System and method for providing backup protection for circuit breaker failureExpiredJan 23, 97May 02, 00[G05B, H02H]
6048208 Electrical service simulatorExpiredDec 17, 97Apr 11, 00[G09B]
6016889 Fall protection device including tiltable bearingExpiredJul 07, 97Jan 25, 00[E06C]
5896302 System and method for providing integrated reclosing of circuit breakers in a power substationExpiredJan 23, 97Apr 20, 99[H02H]
5425070 Nuclear fuel assembly insert alignment toolExpiredJul 22, 94Jun 13, 95[G21C]
5214385 Apparatus and method for utilizing polarization voltage to determine charge state of a batteryExpiredMay 22, 91May 25, 93[G01N, A02J]
5048329 Hydraulic valve test deviceExpiredAug 27, 90Sep 17, 91[G01M]
5010446 Multi-edge extender boardExpiredOct 30, 89Apr 23, 91[G01R]
4916628 Microprocessor-based control/status monitoring arrangementExpiredJul 08, 88Apr 10, 90[H02B, G01F]
4783307 Reactor control system verificationExpiredMar 05, 87Nov 08, 88[G21C]
4697134 Apparatus and method for measuring battery conditionExpiredJul 31, 86Sep 29, 87[H02J, G01N]
4546309 Apparatus and method for locating ground faultsExpiredSep 13, 82Oct 08, 85[G01R]
4540935 Apparatus for identifying defective electric power distribution capacitorsExpiredJan 03, 84Sep 10, 85[G01R]
4536704 Apparatus for identifying defective substation capacitorsExpiredJan 03, 84Aug 20, 85[G01R]
4473014 Cyclone detectorExpiredSep 29, 82Sep 25, 84[F23D]
4425541 Apparatus for identifying defective electric power distribution capacitorsExpiredSep 14, 81Jan 10, 84[G01R]
4407601 Cross-arm braceExpiredNov 03, 80Oct 04, 83[E04H]
4406047 Instrument and procedure for replacing nuclear reactor jet pump holddown beamsExpiredJan 14, 81Sep 27, 83[B23P, B65D]

Top Inventors for This Owner

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