EXIDE ELECTRONICS CORPORATION

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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
 
  
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 199
 
  
 
G11C STATIC STORES 1150
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 1119
 
  
 
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 1101

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6348782 Uninterruptible power supply systems, voltage regulators and operating methods employing controlled ferroresonant transformer circuitsOct 02, 98Feb 19, 02[G05F]
5684686 Boost-input backed-up uninterruptible power supplyJun 07, 95Nov 04, 97[H02J, H02M]
5381554 Uninterrupted power supply (UPS) system interfacing with communications networkFeb 15, 94Jan 10, 95[G06F, G11C]
5319571 UPS system with improved network communicationsNov 24, 92Jun 07, 94[G06F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5185536 Uninterruptible power supply having improved battery chargerExpiredSep 27, 91Feb 09, 93[H02J]
4935861 Uninterrupted power supply having no low frequency power magneticsExpiredJun 13, 89Jun 19, 90[H02M]
4687697 Composite having improved transverse structural integrity and flexibility for use in high temperature environmentsExpiredSep 11, 85Aug 18, 87[B32B, B01D]
4639849 Snubber circuit for H.F. bridge converterExpiredMay 08, 85Jan 27, 87[H02H]
4453222 Emergency device employing programmable vocal warning commandsExpiredApr 19, 82Jun 05, 84[G08B, G10L]
D269913 Adjustable lampExpiredAug 14, 80Jul 26, 83[D260]
D269553 Emergency lighting unitExpiredAug 14, 80Jun 28, 83[D260]
4311920 Emergency power sourceExpiredMay 02, 79Jan 19, 82[H02J]
4255746 Emergency lighting and fire detector systemExpiredNov 21, 77Mar 10, 81[G08B]
4200830 Series resonant battery charger and control thereforExpiredAug 10, 77Apr 29, 80[H02J, H02M]
4199754 Circuit for an emergency lighting and fire detector systemExpiredNov 21, 77Apr 22, 80[G08B]

Top Inventors for This Owner

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