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BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
Patent Owner
Stats
1,381
total patents issued
829 Total Apps Published
Jun 11, 2013 most recent publication
Details
1,381 Issued Patents
182 Issued in last 3 years
177 Published in last 3 years
24,211 Total Citation Count
Jan 17, 1977 Earliest Filing
553 Expired/Abandoned/Withdrawn Patents
Technologies
G06F ELECTRIC DIGITAL DATA PROCESSING 212 143
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 122 67
H04M TELEPHONIC COMMUNICATION 109 53
H04J MULTIPLEX COMMUNICATION 68 49
G10L SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION 41 35
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 38 118
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 33 111
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 31 128
Top Patents (by citation)
5,802,502 System for selective communication connection based on transaction pricing signals Apr 26, 94 Sep 01, 98 [H04M, G06F] 354 5,913,820 Position location system May 30, 95 Jun 22, 99 [A61B] 238 5,360,981 Amorphous silicon memory Feb 22, 94 Nov 01, 94 [H01L] 204 5,812,533 Service provision in communications networks Dec 26, 96 Sep 22, 98 [H04L, H04Q] 145 5,394,158 Location determination and handover in mobile radio systems Mar 22, 93 Feb 28, 95 [H04Q] 143 5,777,771 Generation of optical signals with RF components Jan 16, 96 Jul 07, 98 [H04B] 119 5,918,012 Hyperlinking time-based data files Mar 29, 96 Jun 29, 99 [H04L] 116 5,784,358 Broadband switching network with automatic bandwidth allocation in response to data cell detection Mar 22, 96 Jul 21, 98 [H04Q] 115 5,719,951 Normalized image feature processing Mar 04, 93 Feb 17, 98 [G06K] 111 5,504,744 Broadband switching network Jun 03, 94 Apr 02, 96 [H04L] 102
Recent Publications
2013/0132,389 ELECTRONIC DOCUMENT REPOSITORY SYSTEM Jul 29, 11 May 23, 13 [G06F] 2013/0103,833 METHOD AND APPARATUS FOR A MOBILE NODE TO CONNECT DIFFERENT ACCESS ROUTERS WHILE MAINTAINING A CONSISTENT NETWORK ADDRESS Jun 30, 11 Apr 25, 13 [H04L] 2013/0088,997 MONITORING PATH CHARACTERISATION INFORMATION Jun 14, 11 Apr 11, 13 [H04W] 2013/0039,187 CAPACITY ADAPTATION BETWEEN SERVICES OR CLASSES IN A PACKET NETWORK Mar 03, 11 Feb 14, 13 [H04L] 2013/0034,197 METHOD AND SYSTEM FOR FREQUENCY SYNCHRONIZATION Aug 05, 11 Feb 07, 13 [H04L] 2013/0028,392 DATA COLLECTION IN AN ACCESS NETWORK Mar 25, 11 Jan 31, 13 [H04M]
Recent Patents
8,462,648 Data communication Jan 22, 08 Jun 11, 13 [H04L] 8,462,691 Ad hoc communication system Mar 28, 08 Jun 11, 13 [H04L, H04W, H04B] 8,463,867 Distributed storage network Dec 31, 03 Jun 11, 13 [G06F] 8,457,199 Video coding Jun 01, 06 Jun 04, 13 [H04N] 8,458,448 Method of installing a wireless network Mar 27, 09 Jun 04, 13 [H04L] 8,451,755 Access control to telecommunications conference hosting resources Jan 23, 09 May 28, 13 [H04L] 8,452,172 Testing an optical network Feb 26, 08 May 28, 13 [H04B] 8,447,567 Measuring line performance Feb 18, 09 May 21, 13 [H04M] 8,442,149 Method for adapting digital data transmission parameters to measured repetitive noise Oct 23, 06 May 14, 13 [H04K, H04L] 8,437,310 Handover control Dec 19, 08 May 07, 13 [H04Q, H04W]
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