Assignee
UNISYS CORP
US·2,240 granted patents·85 pending applications·99,823 citations·filing 1969–2025
Top patents by PatentIndex Score
2,325 records- 0199US4761725ADigitally controlled A.C. to D.C. power conditionerUNISYS CORP·Filed 1987·Granted Aug 2, 1988·249 cites·22 claims
- 0298US6611598B1Self-authentication of value documents using encoded indicesUNISYS CORP·Filed 2000·Granted Aug 26, 2003·370 cites·2 claims
- 0398US6554275B1Method and system for document overlap/gap error detection and correctionUNISYS CORP·Filed 2001·Granted Apr 29, 2003·75 cites·15 claims
- 0498US6198628B1Parallel cooling of high power devices in a serially cooled evironmentUNISYS CORP·Filed 1998·Granted Mar 6, 2001·197 cites·20 claims
- 0598US4953068AFull bridge power converter with multiple zero voltage resonant transition switchingUNISYS CORP·Filed 1989·Granted Aug 28, 1990·243 cites·2 claims
- 0697US6570511B1Data compression method and apparatus implemented with limited length character tables and compact string code utilizationUNISYS CORP·Filed 2001·Granted May 27, 2003·99 cites·34 claims
- 0797US6427230B1System and method for defining and managing reusable groups software constructs within an object management systemUNISYS CORP·Filed 1998·Granted Jul 30, 2002·468 cites·24 claims
- 0897US5848784ADocument separation apparatusUNISYS CORP·Filed 1997·Granted Dec 15, 1998·65 cites·7 claims
- 0997US5583561AMulti-cast digital video data server using synchronization groupsUNISYS CORP·Filed 1994·Granted Dec 10, 1996·807 cites·59 claims
- 1097US5423527ADocument transport with gap adjustUNISYS CORP·Filed 1993·Granted Jun 13, 1995·82 cites·5 claims
- 1197US5021971AReflective binary encoder for vector quantizationUNISYS CORP·Filed 1989·Granted Jun 4, 1991·241 cites·12 claims
- 1297US4855888AConstant frequency resonant power converter with zero voltage switchingUNISYS CORP·Filed 1988·Granted Aug 8, 1989·232 cites·12 claims
- 1397US4727354ASystem for selecting best fit vector code in vector quantization encodingUNISYS CORP·Filed 1987·Granted Feb 23, 1988·315 cites·14 claims
- 1496US7356549B1System and method for cross-reference linking of local partitioned B-treesUNISYS CORP·Filed 2005·Granted Apr 8, 2008·94 cites·22 claims
- 1596US6799252B1High-performance modular memory system with crossbar connectionsUNISYS CORP·Filed 2001·Granted Sep 28, 2004·126 cites·37 claims
- 1696US5911776AAutomatic format conversion system and publishing methodology for multi-user networkUNISYS CORP·Filed 1996·Granted Jun 15, 1999·866 cites·6 claims
- 1796US5864870AMethod for storing/retrieving files of various formats in an object database using a virtual multimedia file systemUNISYS CORP·Filed 1996·Granted Jan 26, 1999·657 cites·16 claims
- 1896US5848415ASelective multiple protocol transport and dynamic format conversion in a multi-user networkUNISYS CORP·Filed 1996·Granted Dec 8, 1998·613 cites·8 claims
- 1996US5575466ADocument transport with variable pinch-roll force for gap adjustUNISYS CORP·Filed 1994·Granted Nov 19, 1996·50 cites·7 claims
- 2096US5499236ASynchronous multipoint-to-point CDMA communication systemUNISYS CORP·Filed 1994·Granted Mar 12, 1996·191 cites·19 claims
- 2196US5404508AData base backup and recovery system and methodUNISYS CORP·Filed 1992·Granted Apr 4, 1995·318 cites·12 claims
- 2295US7433098B2Document processing system with improved image quality assuranceUNISYS CORP·Filed 2004·Granted Oct 7, 2008·174 cites·17 claims
- 2395US7222133B1Method for reducing database recovery timeUNISYS CORP·Filed 2004·Granted May 22, 2007·1.5k cites·8 claims
- 2495US6889370B1Method and apparatus for selecting and aligning cells using a placement toolUNISYS CORP·Filed 2000·Granted May 3, 2005·121 cites·35 claims
- 2595US6877016B1Method of capturing a physically consistent mirrored snapshot of an online databaseUNISYS CORP·Filed 2001·Granted Apr 5, 2005·166 cites·3 claims
- 2695US6697962B1Remote computer system monitoring and diagnostic boardUNISYS CORP·Filed 2000·Granted Feb 24, 2004·154 cites·15 claims
- 2795US6601932B1Close-off for use with an equipment rackUNISYS CORP·Filed 2002·Granted Aug 5, 2003·87 cites·36 claims
- 2895US6453312B1System and method for developing a selectably-expandable concept-based searchUNISYS CORP·Filed 1998·Granted Sep 17, 2002·342 cites·37 claims
- 2995US6167564ASoftware system development frameworkUNISYS CORP·Filed 1998·Granted Dec 26, 2000·318 cites·1 claims
- 3095US6121901AData compression and decompression system with immediate dictionary updating interleaved with string searchUNISYS CORP·Filed 1998·Granted Sep 19, 2000·136 cites·22 claims
- 3195US5986887AStacked circuit board assembly adapted for heat dissipationUNISYS CORP·Filed 1998·Granted Nov 16, 1999·120 cites·26 claims
- 3295US5407851AMethod of fabricating an electrically alterable resistive component on an insulating layer above a semiconductor substrateUNISYS CORP·Filed 1993·Granted Apr 18, 1995·99 cites·4 claims
- 3395US5379184APry-in/pry-out disk drive receptacleUNISYS CORP·Filed 1993·Granted Jan 3, 1995·202 cites·39 claims
- 3495US5321816ALocal-remote apparatus with specialized image storage modulesUNISYS CORP·Filed 1992·Granted Jun 14, 1994·1.8k cites·4 claims
- 3595US5193162ACache memory with data compaction for use in the audit trail of a data processing system having record locking capabilitiesUNISYS CORP·Filed 1989·Granted Mar 9, 1993·399 cites·1 claims
- 3695US5034828ASlider with piezo-bossUNISYS CORP·Filed 1989·Granted Jul 23, 1991·80 cites·13 claims
- 3795US4908836AMethod and apparatus for decoding multiple bit sequences that are transmitted simultaneously in a single channelUNISYS CORP·Filed 1988·Granted Mar 13, 1990·192 cites·10 claims
- 3895US4851965ADirected air management system for cooling multiple heat sinksUNISYS CORP·Filed 1988·Granted Jul 25, 1989·226 cites·2 claims
- 3994US7167916B2Computer OS dispatcher operation with virtual switching queue and IP queuesUNISYS CORP·Filed 2002·Granted Jan 23, 2007·135 cites·16 claims
- 4094US7054155B1Fan tray assemblyUNISYS CORP·Filed 2003·Granted May 30, 2006·131 cites·25 claims
- 4194US6874146B1Metadata driven system for effecting extensible data interchange based on universal modeling language (UML), meta object facility (MOF) and extensible markup language (XML) standardsUNISYS CORP·Filed 1999·Granted Mar 29, 2005·208 cites·8 claims
- 4294US6771207B1Establishing radar coverage, blockage, and clutter region maps for radar product data based on terrain elevation dataUNISYS CORP·Filed 2003·Granted Aug 3, 2004·82 cites·21 claims
- 4394US6624762B1Hardware-based, LZW data compression co-processorUNISYS CORP·Filed 2002·Granted Sep 23, 2003·113 cites·35 claims
- 4494US6614368B1Data compression method and apparatus utilizing cascaded character tablesUNISYS CORP·Filed 2002·Granted Sep 2, 2003·67 cites·39 claims
- 4594US6314501B1Computer system and method for operating multiple operating systems in different partitions of the computer system and for allowing the different partitions to communicate with one another through shared memoryUNISYS CORP·Filed 1998·Granted Nov 6, 2001·454 cites·30 claims
- 4694US6226792B1Object management system supporting the use of application domain knowledge mapped to technology domain knowledgeUNISYS CORP·Filed 1998·Granted May 1, 2001·334 cites·7 claims
- 4794US6154787AGrouping shared resources into one or more pools and automatically re-assigning shared resources from where they are not currently needed to where they are neededUNISYS CORP·Filed 1998·Granted Nov 28, 2000·1.2k cites·50 claims
- 4894US6049467AStackable high density RAM modulesUNISYS CORP·Filed 1998·Granted Apr 11, 2000·190 cites·18 claims
- 4994US6018627ATool-independent system for application building in an object oriented development environment with data stored in repository in OMG compliant UML representationUNISYS CORP·Filed 1997·Granted Jan 25, 2000·311 cites·24 claims
- 5094US6000693AArticle detection via pinch-roll motionUNISYS CORP·Filed 1996·Granted Dec 14, 1999·63 cites·1 claims
Showing the top 50 of 2,325 patent records by PatentIndex Score.
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