WESCOM, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
G08B SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS 193
 
 
 
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
5426425 Intelligent locator system with multiple bits represented in each pulseOct 07, 92Jun 20, 95[G08B, H04Q]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5512879 Apparatus to prevent infant kidnappings and mixupsExpiredJul 25, 94Apr 30, 96[G08B]
4990892 Personnel locator systemExpiredAug 07, 89Feb 05, 91[G08B]
D285926 Housing for interface moduleExpiredDec 14, 83Sep 30, 86[]
4611097 Sine wave ring generatorExpiredJun 13, 84Sep 09, 86[H04M, H03K]
4607140 Build out capacitor circuitExpiredMar 05, 84Aug 19, 86[H04B]
4607141 Active network termination circuitExpiredMar 05, 84Aug 19, 86[H04B]
4587437 Coupling/decoupling capacitor multiplierExpiredMar 19, 84May 06, 86[H03H]
4506237 Adjustable slope equalizerExpiredNov 30, 82Mar 19, 85[H04B, H03H]
4490692 Reverse equalization networkExpiredMay 26, 82Dec 25, 84[H03H]
4476351 Subscriber loop current regulatorExpiredMar 25, 82Oct 09, 84[H04M]
4472763 Plug-in module card holderExpiredDec 27, 82Sep 18, 84[H05K]
4442321 Transparent dialing between interconnected telecommunication switching systemsExpiredJun 08, 81Apr 10, 84[H04M, H04Q]
4435620 Dial pulse delay circuitExpiredOct 22, 81Mar 06, 84[H04M, H04Q]
4388500 Electronic hybridExpiredFeb 27, 81Jun 14, 83[H04B]
4371754 Automatic fault recovery system for a multiple processor telecommunications switching controlExpiredNov 19, 80Feb 01, 83[H04M, G06F]
4354159 Prescription attenuator having cascaded L-pad sectionsExpiredFeb 02, 81Oct 12, 82[H03H]
4351986 Electronic telephones with cooperative interaction between a master set and members' sets in a groupExpiredSep 19, 80Sep 28, 82[H04M]
4313038 DTMF Signal receiverExpiredFeb 19, 80Jan 26, 82[H04M]
4301494 Printed circuit board faceplate assemblyExpiredSep 28, 79Nov 17, 81[H05K]
4219699 Telephone supervision system using DTMF signalsExpiredOct 13, 78Aug 26, 80[H04Q]

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Top Inventors for This Owner

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