TANDEM COMPUTERS INCORPORATED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 27420
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 2157
 
  
 
H03K PULSE TECHNIQUE 2129
 
  
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 2154
 
  
 
A47B TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE 151
 
  
 
A61M DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY 1153
 
  
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 1132
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 176
 
  
 
H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 1101
 
  
 
H03L AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES 179

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6219770 Method and apparatus for managing copy on write operations in a virtual memoryMar 23, 98Apr 17, 01[G06F]
6115830 Failure recovery for process relationships in a single system image environmentMar 28, 98Sep 05, 00[G06F, H02H]
6112079 Method and apparatus for providing fraud protection mediation in a mobile telephone systemJan 04, 99Aug 29, 00[H04M, H04Q]
6105147 Using process pairs as transaction-coordinated resource managersApr 16, 97Aug 15, 00[G06F]
6099098 Self-locking mounting apparatusAug 14, 98Aug 08, 00[A47B]
6058388 Implementation of escrow-locking scalar quantities via process-pair resource managersJun 16, 97May 02, 00[G06F]
6026362 Tool and method for diagnosing and correcting errors in a computer programDec 27, 95Feb 15, 00[G06F]
6016474 Tool and method for diagnosing and correcting errors in a computer programSep 11, 95Jan 18, 00[G06F]
5795317 Extracorporeal blood processing methods and apparatusJun 07, 95Aug 18, 98[A61M]
5765007 Microinstruction sequencer having multiple control stores for loading different rank registers in parallelNov 13, 92Jun 09, 98[G06F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2004/0223,003 Parallel pipelined merge enginesAbandonedJun 09, 04Nov 11, 04[B41J, G06F]
2002/0138,704 METHOD AND APPARATUS FAULT TOLERANT SHARED MEMORYAbandonedDec 15, 98Sep 26, 02[G06F]
6092177 Computer architecture capable of execution of general purpose multiple instructionsExpiredFeb 25, 99Jul 18, 00[G06F]
6092224 Logic analyzer probe assembly with probe and interface boardsExpiredMay 27, 98Jul 18, 00[G01R]
6055653 Method and apparatus for testing gang memory modulesExpiredApr 27, 98Apr 25, 00[G11C]
6009474 Method and apparatus for re-assigning network addresses to network servers by re-configuring a client host connected theretoExpiredMay 20, 97Dec 28, 99[G06F]
5958034 Inductive impedance modulation of transmission lines with stub loadsExpiredSep 22, 97Sep 28, 99[G06F]
5918032 Computer architecture capable of concurrent issuance and execution of general purpose multiple instructionsExpiredOct 28, 97Jun 29, 99[G06F]
5881453 Method for mounting surface mount devices to a circuit boardExpiredApr 24, 97Mar 16, 99[H05K]
H001741 Method and apparatus for pattern sensitivity stress testing of memory systemsExpiredDec 05, 94Jul 07, 98[H01L]
5504988 Apparatus for mounting surface mount devices to a circuit boardExpiredMay 17, 94Apr 09, 96[B23P]
5241627 Automatic processor module determination for multiprocessor systems for determining a value indicating the number of processorsExpiredMay 30, 89Aug 31, 93[G06F]
5146589 Refresh control for dynamic memory in multiple processor systemExpiredDec 17, 90Sep 08, 92[G06F]
D327673 Electronic computer peripheralExpiredApr 24, 90Jul 07, 92[]
5081701 System for controlling data transfer using transfer handshake protocol using transfer complete and transfer inhibit signalsExpiredOct 11, 89Jan 14, 92[G06F]
5032983 Entry point mapping and skipping method and apparatusExpiredSep 18, 89Jul 16, 91[G06F]
4998198 Dynamic burst control for data transfersExpiredApr 07, 88Mar 05, 91[G06F]
4967311 Electronic module interconnection systemExpiredJul 31, 89Oct 30, 90[H05K]
4941170 Facsimile transmissions systemExpiredMar 20, 89Jul 10, 90[H04M, H04N]
4872109 Enhanced CPU return address stackExpiredNov 02, 87Oct 03, 89[G06F]

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