DISTRIBUTION CONTROL SYSTEMS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04B TRANSMISSION 2208
 
  
 
H04M TELEPHONIC COMMUNICATION 2161
 
  
 
B65D CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES 197
 
  
 
G08B SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS 193
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 1284
 
  
 
H04Q SELECTING 1109

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5486805 Method of receiving unsolicited messages on an electrical distribution network communications systemJul 06, 93Jan 23, 96[H04M, G08B, H04Q]
5310075 Waterproof, gasketless enclosureNov 27, 92May 10, 94[B65D]
5262755 Inbound communications using electricity distribution networkDec 17, 91Nov 16, 93[H04L, H04B]
5198796 Outbound signal detector system and methodJun 27, 91Mar 30, 93[H04M, H04B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2002/0120,569 System and method for communication between remote locationsAbandonedDec 14, 01Aug 29, 02[G06F]
5146067 Prepayment metering system using encoded purchase cards from multiple locationsExpiredJan 12, 90Sep 08, 92[G06F]
4998102 Integrated meter transponderExpiredAug 02, 88Mar 05, 91[G08C]
4996513 Carrier stability erasure filling system for communications over electricity distribution networkExpiredFeb 20, 90Feb 26, 91[H04M, H04J]
4963853 Simultaneous inbound multi-channel communication system using electricity distribution networkExpiredOct 16, 89Oct 16, 90[H04M]
4918422 Method and apparatus for extracting inbound information generated line-to-line in a multi-phase electric distribution systemExpiredApr 25, 88Apr 17, 90[H04B]
4914418 Outbound detector system and methodExpiredJan 03, 89Apr 03, 90[H04M, H04J]
4904995 Integrated remote electricity meter transponder and combinationExpiredJan 21, 86Feb 27, 90[G08C]
4795892 Pre-paid commodity systemExpiredDec 09, 87Jan 03, 89[G06F]
4731575 Prepayment metering system using encoded purchase cardsExpiredDec 08, 86Mar 15, 88[G01R]
4658238 Method and apparatus for providing selectively variable modulation signal for a carrier waveExpiredAug 24, 82Apr 14, 87[H04M]

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