CHINA TELECOM CORPORATION LIMITED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01Q AERIALS 4106
 
  
 
H04B TRANSMISSION 3207
 
  
 
H04W WIRELESS COMMUNICATION NETWORKS 2186
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 1284

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9698494 Quadri-polarized antenna radiator, quadri-polarized antenna and quadri-polarized multi-antenna arrayDec 31, 14Jul 04, 17[H01Q]
9693245 Method and system for measuring interference signal in carrier signalOct 25, 12Jun 27, 17[H04L, H04B, H04W, H04J]
9653817 Array antenna and base stationSep 28, 12May 16, 17[H04B, H01Q, H04W]
9472861 Multi-mode antenna and base stationJan 30, 14Oct 18, 16[H01Q]
8533346 SIP-based network video surveillance system and methodSep 17, 10Sep 10, 13[H04N, G06F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2012/0002,044 Method and System for Implementing a Three-Dimension PositioningAbandonedDec 21, 10Jan 05, 12[H04N, G06K]
2011/0208,494 METHOD AND SYSTEM FOR SIMULATING A HANDLE'S MOTIONAbandonedNov 30, 10Aug 25, 11[G06F, G06G]

Top Inventors for This Owner

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