C & P OF VIRGINIA

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
H04J MULTIPLEX COMMUNICATION 2123
 
 
 
H04M TELEPHONIC COMMUNICATION 2161
 
 
 
H04B TRANSMISSION 1209
 
 
 
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
5375159 System and method for remote testing and protocol analysis of communication linesSep 29, 92Dec 20, 94[H04M, H04J]
5373501 Telecommunications switching network including improved port selector and control circuitryJul 10, 92Dec 13, 94[H04M, H04B, H04J]
5276529 System and method for remote testing and protocol analysis of communication linesJan 28, 91Jan 04, 94[H04N]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5189663 Method of and system for remote testing and reporting of ISDN line conditionsExpiredApr 26, 90Feb 23, 93[H04J]
4998240 Method of and system for remote testing of integrated services digital networksExpiredAug 15, 89Mar 05, 91[H04J]

Top Inventors for This Owner

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