ESTECH SYSTEMS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04M TELEPHONIC COMMUNICATION 10153
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 6279
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 1158
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446
 
  
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 1241

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8538002 Telephone systemJun 04, 12Sep 17, 13[H04M, H04L, G06F]
8391298 Phone directory in a voice over IP telephone systemMay 29, 03Mar 05, 13[H04M, H04L]
8194845 Telephone systemAug 28, 08Jun 05, 12[H04M, H04L, H04N, G06F]
7860083 Shared knowledge in a telephone systemJun 18, 09Dec 28, 10[H04L]
7826440 Quality of service in a remote telephoneFeb 07, 02Nov 02, 10[H04L, G01R, H04J]
7421066 Telephone call/voice processing systemMar 13, 01Sep 02, 08[H04M]
RE39722 Telephone call/voice processing systemJun 03, 05Jul 10, 07[H04M]
7221741 Dialing using caller IDJan 18, 00May 22, 07[H04M]
7123699 Voice mail in a voice over IP telephone systemAug 02, 02Oct 17, 06[H04M]
7068684 Quality of service in a voice over IP telephone systemFeb 01, 01Jun 27, 06[H04L]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0044,986 NOTATION-ENABLED COMMUNICATION SYSTEM AND METHOD OF USE THEREOFAbandonedAug 09, 13Feb 12, 15[H04M]
7564834 Shared knowledge in a telephone systemExpiredOct 30, 02Jul 21, 09[H04L]

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