HD ELECTRIC COMPANY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 7152
 
  
 
G08B SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS 391
 
  
 
1004 OTHER MEASURING INSTRUMENTS, APPARATUS AND DEVICES333
 
  
 
A45C PURSES; LUGGAGE; HAND CARRIED BAGS 122
 
  
 
A45F TRAVELLING OR CAMP EQUIPMENT; SACKS OR PACKS CARRIED ON THE BODY 116
 
  
 
0301 TRUNKS, SUITCASES, BRIEFCASES, HANDBAGS, KEYHOLDERS, CASES SPECIALLY DESIGNED FOR THEIR CONTENTS, WALLETS AND SIMILAR ARTICLES142

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D792252 Voltage detectorMay 04, 16Jul 18, 17[1004]
9658265 High voltage digital voltmeter and wireless phaserAug 06, 14May 23, 17[G01R]
9494623 High-voltage detector monitoring systemSep 30, 14Nov 15, 16[G08B, G01R]
9494632 High-voltage detector monitoring systemSep 30, 14Nov 15, 16[G08B, A61B, G01R]
9265331 Wearable carrying caseJan 21, 10Feb 23, 16[A45F, A45C]
D737160 Digital ammeterMar 07, 14Aug 25, 15[1004]
D664457 Voltage detectorFeb 21, 11Jul 31, 12[1004]
8212549 Ammeter with improved current sensingFeb 18, 09Jul 03, 12[G01R]
D622956 Wearable carrying caseJan 29, 10Sep 07, 10[0301]
7746051 Voltmeter with dual displaysFeb 18, 09Jun 29, 10[G01R]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6323638 High-resistance probe and voltage detector incorporating sameExpiredApr 01, 99Nov 27, 01[G01R]
5525915 Electrical conductivity tester for ropesExpiredJan 27, 95Jun 11, 96[G01R]
5291124 Tester for high voltage measuring apparatusExpiredJun 30, 92Mar 01, 94[G01R]
5130642 Hanging ammeter with removable battery cartridgeExpiredJun 13, 91Jul 14, 92[H01M, H01R, G01R]
5017739 Jacket for cable connectorExpiredJul 09, 90May 21, 91[H01R, H02G]

Top Inventors for This Owner

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