Alcatel Cit

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
H04B TRANSMISSION 13197
 
 
 
H04J MULTIPLEX COMMUNICATION 12113
 
 
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 8277
 
 
 
G06F ELECTRIC DIGITAL DATA PROCESSING 4443
 
 
 
H04Q SELECTING 4106
 
 
 
G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR364
 
 
 
H04M TELEPHONIC COMMUNICATION 3160
 
 
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 260
 
 
 
F04D NON-POSITIVE-DISPLACEMENT PUMPS272
 
 
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 2196

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6646995 Method of adapting the air interface and mobile radio system and corresponding base transceiver station, mobile station and transmission modeAug 03, 00Nov 11, 03[H04J]
6459690 Channel selector device for multiple access direct transmission systems between mobile stationsJul 26, 96Oct 01, 02[H04Q]
6456598 Method of adapting the air interface in a mobile radio system and corresponding base transceiver station, mobile station and transmission modeAug 03, 00Sep 24, 02[H04L, H04Q, H04B]
6148423 Signal transmission performance optimization device in a system for transmitting digital data, especially on an optical linkJun 07, 95Nov 14, 00[G06F]
6134220 Method of adapting the air interface in a mobile radio system and corresponding base transceiver station, mobile station and transmission modeOct 11, 96Oct 17, 00[H04L, H04Q, H04B]
5920416 Optical method of transmitting digital dataFeb 21, 97Jul 06, 99[H04B]
5920627 Encryption device and decryption device for information conveyed by asynchronous transfer mode cellsDec 17, 96Jul 06, 99[H04L]
5914795 Method of and device for amplifying channels extracted from a wavelength division multiplexApr 11, 97Jun 22, 99[H04J]
5895202 Molecular drag pumpJun 14, 96Apr 20, 99[F01D]
5894472 Packet access method in a cellular digital radio-communications systemOct 31, 96Apr 13, 99[H04J]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6282946 Leak detectorExpiredDec 06, 95Sep 04, 01[G01M]
6262821 Optical spectral multiplexer for inserting and extractingExpiredJun 09, 98Jul 17, 01[H04J]
6094145 Telecommunication management systemExpiredSep 10, 96Jul 25, 00[G05B]
6072847 Base transceiver station for cellular mobile radio system and system for synchronizing such base transceiver stationsExpiredJan 25, 99Jun 06, 00[H04L]
6031829 Base transceiver station for cellular mobile radio system and system for synchronizing such base transceiver stationsExpiredSep 25, 96Feb 29, 00[H04B, H04J]
6023543 Bidirectional optical link, and device for amplifying such linkExpiredNov 16, 98Feb 08, 00[G02B]
5924034 Cellular mobile radio system and base transceiver station and base station controller thereforExpiredSep 25, 96Jul 13, 99[H04Q]
5822315 Air interface adapting method for a mobile radio systemExpiredSep 24, 96Oct 13, 98[H04J]
5805993 Cell level change control device for cellular mobile radio networks with more than one level of cellExpiredOct 11, 96Sep 08, 98[H04Q]
5728929 Installation for detecting the presence of helium in a fluid circuitExpiredMay 22, 96Mar 17, 98[G01M]
5720174 Secondary pump unitExpiredOct 03, 96Feb 24, 98[B01D]
5712854 Method of routing cells in an asynchronous time-division multiplex switching network and corresponding network input switch and applicationExpiredNov 30, 95Jan 27, 98[H04L]
5712982 TDMA point-to-multipoint transmission network with a multiframe which includes a single continuous stream of data subframes and a single free period for response-time measurementsExpiredSep 20, 95Jan 27, 98[H04L, G06F]
5703707 High capacity switching matrixExpiredJun 13, 96Dec 30, 97[H04J]
5686772 Magnetic bearing and an assembly comprising a stator portion and a rotor portion suspended via such a bearingExpiredJan 18, 95Nov 11, 97[H02K]
5681983 Tracer gas leak detectorExpiredMay 10, 96Oct 28, 97[G01M]
5678008 Signaling protocol supporting multimedia services employing an automation with multiple states and a state matrix indicating the states of multiple entitiesExpiredApr 20, 95Oct 14, 97[G06F]
5673267 Method of allocating carrier frequencies for simultaneous transmission of a plurality of modulated signals especially on an optical linkExpiredJun 03, 93Sep 30, 97[H04J]
5657143 Optical transmission system suitable for video-communication cable networksExpiredNov 24, 95Aug 12, 97[H04J]
5657474 Transactional protocol and system for implementing itExpiredNov 20, 95Aug 12, 97[G06F]

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