WENZHOU VAN-SHEEN ELECTRIC APPLIANCE CO.,LTD

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 473
 
  
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 2131
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 1158
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 193
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 1119
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 1110

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2015/0280,430 LEAKAGE DETECTION PROTECTION CIRCUIT WITH FUNCTION OF REGULAR SELF-EXAMINATION OF SEPARATE ELEMENTSMar 13, 15Oct 01, 15[H02H]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9728951 Leakage protection socket with reverse connection protectionApr 28, 14Aug 08, 17[H01R, H01H, H02H]
D413862 Ground fault circuit interrupterMay 08, 98Sep 14, 99[1303]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6442007 Ground fault interrupter with display circuitExpiredFeb 11, 00Aug 27, 02[H02H]

Top Inventors for This Owner

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