INTERNATIONAL TELESYSTEMS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04M TELEPHONIC COMMUNICATION 4159
 
  
 
H04Q SELECTING 2108

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5425093 System for integrating a stand alone inbound automatic call distributor and a outbound automatic call dialerFeb 23, 93Jun 13, 95[H04M]
5327491 Method for pacing calls to reduce nuisance callsJan 11, 93Jul 05, 94[H04M, H04Q]
RE34536 Call management system with protocol converter and port controllerJun 28, 90Feb 08, 94[H04M]
5179589 Call progress pacingNov 27, 91Jan 12, 93[H04M, H04Q]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5235640 Master decoder for television signal scramble systemsExpiredDec 21, 89Aug 10, 93[H04N]
5007000 Classification of audio signals on a telephone lineExpiredJun 28, 89Apr 09, 91[G01L]
4933964 Pacing of telephone calls for call origination management systemsExpiredJul 25, 89Jun 12, 90[H04M]
4894827 Redundancy and buffering circuitsExpiredMar 02, 88Jan 16, 90[G06F]
4875157 Alternate memory addressing for information storage and retrievalExpiredMar 18, 87Oct 17, 89[G06F]
4864605 Telephone trunk interface circuitExpiredMar 08, 88Sep 05, 89[H04M]
4858120 System for regulating arrivals of customers to serversExpiredMar 18, 87Aug 15, 89[G06F]
4829514 Digital voice recording and reproduction and telephone network signalling using direct storage in RAM of PCM encoded dataExpiredMar 18, 87May 09, 89[H04Q]
4817130 Call management system with protocol converter and port controllerExpiredDec 05, 86Mar 28, 89[H04M]
4741028 Method of randomizing telephone numbersExpiredJul 30, 86Apr 26, 88[H04M]

Top Inventors for This Owner

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