AT&T ISTEL

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 2196
 
  
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 2240
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446
 
  
 
H04B TRANSMISSION 1209
 
  
 
H04M TELEPHONIC COMMUNICATION 1162
 
  
 
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
6718278 Location systemDec 11, 00Apr 06, 04[G06F]
6697649 Peer-to-peer communication in a radio networkApr 29, 02Feb 24, 04[H04M, H04B]
6348856 Detection system for determining positional and other information about objectsMay 31, 00Feb 19, 02[H04Q]
6347158 Method for encoding digital informationDec 05, 00Feb 12, 02[H04N, G06K]
6192159 Method for encoding digital informationDec 19, 97Feb 20, 01[H04N, G06K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6710719 Detection system for determining orientation information about objectsExpiredAug 02, 99Mar 23, 04[G08B, H04Q]
6596943 CablesExpiredApr 20, 99Jul 22, 03[H01B]
6553013 Detection system for determining positional information about objectsExpiredAug 02, 99Apr 22, 03[H04Q]
6493649 Detection system for determining positional and other information about objectsExpiredJul 12, 99Dec 10, 02[G06F, G01S]
6470002 Detection system for determining positional information about objectsExpiredJun 22, 99Oct 22, 02[G08B, G08C, B28C, B01F, H04J]
6389175 Method for encoding digital informationExpiredJul 19, 00May 14, 02[H04N, G06K]
6317386 Method of increasing the capacity and addressing rate of an ultrasonic location systemExpiredDec 30, 99Nov 13, 01[G01S]
6055246 Addition of time informationExpiredSep 17, 97Apr 25, 00[H01J, H04L, H04J]

Top Inventors for This Owner

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