ASCEND COMMUNICATIONS, INC.

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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 10275
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 5442
 
  
 
H04J MULTIPLEX COMMUNICATION 2123
 
  
 
G08C TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS 154
 
  
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 1132
 
  
 
H04M TELEPHONIC COMMUNICATION 1162

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6711153 Route lookup engineDec 13, 99Mar 23, 04[H04L]
6570854 System and method for performing explicit rate marking for flow control in ATM networks using a virtual bandwidth-based methodologyMay 17, 99May 27, 03[G08C]
6553002 Apparatus and method for routing data packets through a communications networkAug 29, 97Apr 22, 03[H04L]
6396838 Management of free space in an ATM virtual connection parameter tableSep 28, 98May 28, 02[H04L]
6078595 Timing synchronization and switchover in a network switchAug 28, 97Jun 20, 00[H04J]
6058431 System and method for network address translation as an external service in the access server of a service providerApr 23, 98May 02, 00[G06F]
6015300 Electronic interconnection method and apparatus for minimizing propagation delaysAug 28, 97Jan 18, 00[H01R]
6008995 Card cage accommodating PC cards of different sizeAug 19, 97Dec 28, 99[G06F]
5991297 Independently sizable memory pages for a plurality of connection ID types in a network switchAug 28, 97Nov 23, 99[H04J]
5987520 Closed user group preprocessing decision for efficient call security validationJan 16, 98Nov 16, 99[H04M, G06F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6967955 Virtual path merging in a multipoint-to-point network tunneling protocolExpiredMar 27, 00Nov 22, 05[H04L]
6667959 Switch fabric testingExpiredDec 13, 99Dec 23, 03[H04J]
6587463 Packet classification engineExpiredDec 13, 99Jul 01, 03[H04L]
6463067 Submission and response architecture for route lookup and packet classification requestsExpiredDec 13, 99Oct 08, 02[H04L]
6434149 System and method for removing data traffic from a telephone networkExpiredJul 01, 98Aug 13, 02[H04Q]
6373837 System for transmitting data between circuit boards in a housingExpiredJun 12, 98Apr 16, 02[H04L, H04Q]
6320864 Logical multicasting method and apparatusExpiredJun 19, 98Nov 20, 01[H04L]
6259693 Cell combination to utilize available switch bandwidthExpiredAug 28, 97Jul 10, 01[H04Q]
6233243 Method and apparatus for performing cut-through virtual circuit mergingExpiredNov 24, 97May 15, 01[H04L]
6219790 Centralized authentication, authorization and accounting server with support for multiple transport protocols and multiple client typesExpiredJun 19, 98Apr 17, 01[C06F]
6192046 Apparatus and method for efficiently transferring ATM cells across a backplane in a network switchExpiredAug 28, 97Feb 20, 01[H04L]
6097726 Virtual path merging in a multipoint-to-point network tunneling protocolExpiredMay 07, 98Aug 01, 00[H04L]
6094685 Use of control blocks to map multiple unidirectional connectionsExpiredApr 14, 98Jul 25, 00[G06F]
6072397 Method and apparatus for reducing flame emissions from an electronics enclosureExpiredDec 03, 98Jun 06, 00[G08B, F24F]
6055575 Virtual private network system and methodExpiredJan 26, 98Apr 25, 00[G06F]
6032190 System and method for processing data packetsExpiredOct 03, 97Feb 29, 00[G06F]
5909438 Logical multicast from a switch configured for spatial multicastExpiredSep 18, 96Jun 01, 99[H04L]
5903564 Efficient multicast mapping in a network switchExpiredAug 28, 97May 11, 99[H04L]
5864559 ISDN modem capable of self-configuring to use one of a variety of pre-programmed ISDN protocolsExpiredAug 23, 96Jan 26, 99[H04J]
5687173 Addressable high speed counter arrayExpiredJul 10, 96Nov 11, 97[H04L]

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