ALCATEL USA;INTELLECTUAL PROPERTY DEPARTMENT

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 24261
 
  
 
H04J MULTIPLEX COMMUNICATION 14111
 
  
 
H04Q SELECTING 1397
 
  
 
H04B TRANSMISSION 6204
 
  
 
H04M TELEPHONIC COMMUNICATION 6157
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 3444
 
  
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 2131
 
  
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 269
 
  
 
F28D HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 144
 
  
 
H03B GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS 162

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6320856 System and method for a multi-host subscriber loopMar 08, 99Nov 20, 01[H04Q]
6320876 N:1 transcoderJun 15, 98Nov 20, 01[H04J]
6304550 System and method for broadcast control of a data transmission systemSep 08, 98Oct 16, 01[H04Q]
6286142 Method and system for communicating video signals to a plurality of television setsFeb 23, 96Sep 04, 01[H04N]
6247052 Graphic user interface system for a telecommunications switch management systemDec 23, 97Jun 12, 01[G06F]
6243586 Method of providing access to a telecommunications systemJun 27, 00Jun 05, 01[H04Q]
6195418 Telephone system having a callback capability and method for connecting a recipient of a message to a callerDec 31, 97Feb 27, 01[H04M]
6188667 Transport interface for performing protection switching of telecommunications trafficFeb 05, 99Feb 13, 01[H04L]
6131039 Method and system for wireless telecommunicationsMar 20, 98Oct 10, 00[H04Q]
6081569 Method and apparatus for determining the change in frequency of a reference signalFeb 29, 96Jun 27, 00[H04L]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6621789 Protection switching method and apparatus for coaxial cable-based telephony system (mediaspan)ExpiredAug 25, 99Sep 16, 03[H04L]
2002/0141,332 Failover apparatus and method for an asynchronous data communication networkAbandonedDec 10, 01Oct 03, 02[H04J]
6333930 Subscriber interface for a fiber optic communications terminalExpiredJan 31, 00Dec 25, 01[H04Q]
2001/0053,146 Processor device for terminating and creating synchronous transport signalsAbandonedJul 23, 01Dec 20, 01[H04L]
H001964 Resource management sub-system of a telecommunications switching systemExpiredFeb 19, 98Jun 05, 01[H04L]
6052365 Multi-channel digital data transmission in a wireless telecommunications systemExpiredMay 31, 96Apr 18, 00[H04B]
6021127 Subscriber interface for a fiber optic communications terminalExpiredApr 13, 98Feb 01, 00[H04Q]
5944541 Interleaved power and impedance control using daughtercard edge connector pin arrangementExpiredDec 23, 97Aug 31, 99[H01R]
5896370 Signal protection and monitoring systemExpiredNov 12, 96Apr 20, 99[H04J]
5850387 Processor device for terminating and creating synchronous transport signalsExpiredOct 06, 97Dec 15, 98[H04L]
5826061 System and method for modeling metastable state machine behaviorExpiredJun 10, 96Oct 20, 98[G06F]
5757793 Integrated multi-rate cross-connect systemExpiredDec 10, 96May 26, 98[H04Q, H04J]
5751724 Demultiplexer for a multi-bitline busExpiredFeb 23, 96May 12, 98[H04J]
5745489 Buffered crosspoint matrix for an asynchronous transfer mode switch and method of operationExpiredJul 16, 96Apr 28, 98[H04L]
5689535 Method and apparatus for processing multiple facility datalinksExpiredNov 15, 94Nov 18, 97[G06F]
5675580 Processor device for terminating and creating synchronous transport signalsExpiredApr 05, 95Oct 07, 97[H04J]
5667230 Rack lift assemblyExpiredJun 02, 95Sep 16, 97[B62B]
5644575 Managing memory within a local telecommunications networkExpiredDec 06, 95Jul 01, 97[H04L]
5592545 Voice enhancement system and methodExpiredJun 07, 95Jan 07, 97[H04M]
5574718 Signal protection and monitoring systemExpiredJul 01, 94Nov 12, 96[H04J]

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