Assignee
DIGITAL EQUIPMENT CORP
US·2,283 granted patents·184,866 citations·filing 1973–1999
Top patents by PatentIndex Score
2,283 records- 0199US6009210AHands-free interface to a virtual reality environment using head trackingDIGITAL EQUIPMENT CORP·Filed 1997·Granted Dec 28, 1999·738 cites·9 claims
- 0299US5586260AMethod and apparatus for authenticating a client to a server in computer systems which support different security mechanismsDIGITAL EQUIPMENT CORP·Filed 1993·Granted Dec 17, 1996·798 cites·4 claims
- 0399US5235642AAccess control subsystem and method for distributed computer system using locally cached authentication credentialsDIGITAL EQUIPMENT CORP·Filed 1992·Granted Aug 10, 1993·709 cites·9 claims
- 0498US5933598AMethod for sharing variable-grained memory of workstations by sending particular block including line and size of the block to exchange shared data structuresDIGITAL EQUIPMENT CORP·Filed 1996·Granted Aug 3, 1999·533 cites·10 claims
- 0598US5864863AMethod for parsing, indexing and searching world-wide-web pagesDIGITAL EQUIPMENT CORP·Filed 1996·Granted Jan 26, 1999·406 cites·1 claims
- 0698US5774643AEnhanced raid write hole protection and recoveryDIGITAL EQUIPMENT CORP·Filed 1995·Granted Jun 30, 1998·1.8k cites·19 claims
- 0798US5701480ADistributed multi-version commitment ordering protocols for guaranteeing serializability during transaction processingDIGITAL EQUIPMENT CORP·Filed 1993·Granted Dec 23, 1997·532 cites·34 claims
- 0898US5604376APaddleless molded plastic semiconductor chip packageDIGITAL EQUIPMENT CORP·Filed 1994·Granted Feb 18, 1997·338 cites·11 claims
- 0998US5442390AVideo on demand with memory accessing and or like functionsDIGITAL EQUIPMENT CORP·Filed 1993·Granted Aug 15, 1995·692 cites·10 claims
- 1098US5430727AMultiple protocol routingDIGITAL EQUIPMENT CORP·Filed 1994·Granted Jul 4, 1995·416 cites·8 claims
- 1198US5414704AAddress lookup in packet data communications link, using hashing and content-addressable memoryDIGITAL EQUIPMENT CORP·Filed 1994·Granted May 9, 1995·637 cites·22 claims
- 1298US5414455ASegmented video on demand systemDIGITAL EQUIPMENT CORP·Filed 1993·Granted May 9, 1995·818 cites·29 claims
- 1398US5404482AProcessor and method for preventing access to a locked memory block by recording a lock in a content addressable memory with outstanding cache fillsDIGITAL EQUIPMENT CORP·Filed 1992·Granted Apr 4, 1995·208 cites·15 claims
- 1498US5390327AMethod for on-line reorganization of the data on a RAID-4 or RAID-5 array in the absence of one disk and the on-line restoration of a replacement diskDIGITAL EQUIPMENT CORP·Filed 1993·Granted Feb 14, 1995·518 cites·13 claims
- 1598US5390173APacket format in hub for packet data communications systemDIGITAL EQUIPMENT CORP·Filed 1992·Granted Feb 14, 1995·598 cites·24 claims
- 1698US5375068AVideo teleconferencing for networked workstationsDIGITAL EQUIPMENT CORP·Filed 1992·Granted Dec 20, 1994·410 cites·46 claims
- 1798US5371638AServo method and apparatus for very high track density magnetic recording by adjusting head position based on servo information read from adjacent trackDIGITAL EQUIPMENT CORP·Filed 1994·Granted Dec 6, 1994·144 cites·30 claims
- 1898US5347653ASystem for reconstructing prior versions of indexes using records indicating changes between successive versions of the indexesDIGITAL EQUIPMENT CORP·Filed 1991·Granted Sep 13, 1994·1.8k cites·13 claims
- 1998US5297283AObject transferring system and method in an object based computer operating systemDIGITAL EQUIPMENT CORP·Filed 1992·Granted Mar 22, 1994·454 cites·15 claims
- 2098US5283560AComputer system and method for displaying images with superimposed partially transparent menusDIGITAL EQUIPMENT CORP·Filed 1991·Granted Feb 1, 1994·437 cites·25 claims
- 2198US5251205AMultiple protocol routingDIGITAL EQUIPMENT CORP·Filed 1990·Granted Oct 5, 1993·507 cites·24 claims
- 2298US5224163AMethod for delegating authorization from one entity to another through the use of session encryption keysDIGITAL EQUIPMENT CORP·Filed 1990·Granted Jun 29, 1993·513 cites·15 claims
- 2398US5136592AError detection and correction system for long burst errorsDIGITAL EQUIPMENT CORP·Filed 1989·Granted Aug 4, 1992·156 cites·15 claims
- 2498US5101402AApparatus and method for realtime monitoring of network sessions in a local area networkDIGITAL EQUIPMENT CORP·Filed 1988·Granted Mar 31, 1992·611 cites·17 claims
- 2598US4935832ARecording heads with side shieldsDIGITAL EQUIPMENT CORP·Filed 1988·Granted Jun 19, 1990·109 cites·7 claims
- 2698US4434487ADisk format for secondary storage systemDIGITAL EQUIPMENT CORP·Filed 1981·Granted Feb 28, 1984·105 cites·18 claims
- 2797US6173293B1Scalable distributed file systemDIGITAL EQUIPMENT CORP·Filed 1998·Granted Jan 9, 2001·458 cites·20 claims
- 2897US6119124AMethod for clustering closely resembling data objectsDIGITAL EQUIPMENT CORP·Filed 1998·Granted Sep 12, 2000·369 cites·24 claims
- 2997US6021409AMethod for parsing, indexing and searching world-wide-web pagesDIGITAL EQUIPMENT CORP·Filed 1998·Granted Feb 1, 2000·330 cites·34 claims
- 3097US5852820AMethod for optimizing entries for searching an indexDIGITAL EQUIPMENT CORP·Filed 1996·Granted Dec 22, 1998·298 cites·1 claims
- 3197US5805803ASecure web tunnelDIGITAL EQUIPMENT CORP·Filed 1997·Granted Sep 8, 1998·531 cites·19 claims
- 3297US5745879AMethod and system for managing execution of licensed programsDIGITAL EQUIPMENT CORP·Filed 1995·Granted Apr 28, 1998·842 cites·29 claims
- 3397USD391927SNotebook personal computerDIGITAL EQUIPMENT CORP·Filed 1997·Granted Mar 10, 1998·120 cites·1 claims
- 3497US5627842AArchitecture for system-wide standardized intra-module and inter-module fault testingDIGITAL EQUIPMENT CORP·Filed 1996·Granted May 6, 1997·246 cites·25 claims
- 3597US5594859AGraphical user interface for video teleconferencingDIGITAL EQUIPMENT CORP·Filed 1995·Granted Jan 14, 1997·435 cites·50 claims
- 3697US5528513AScheduling and admission control policy for a continuous media serverDIGITAL EQUIPMENT CORP·Filed 1993·Granted Jun 18, 1996·353 cites·18 claims
- 3797US5499330ADocument display system for organizing and displaying documents as screen objects organized along strand pathsDIGITAL EQUIPMENT CORP·Filed 1993·Granted Mar 12, 1996·363 cites·22 claims
- 3897US5481689AConversion of internal processor register commands to I/O space addressesDIGITAL EQUIPMENT CORP·Filed 1993·Granted Jan 2, 1996·95 cites·11 claims
- 3997US5459837ASystem to facilitate efficient utilization of network resources in a computer networkDIGITAL EQUIPMENT CORP·Filed 1993·Granted Oct 17, 1995·578 cites·11 claims
- 4097US5438508ALicense document interchange format for license management systemDIGITAL EQUIPMENT CORP·Filed 1994·Granted Aug 1, 1995·690 cites·26 claims
- 4197US5321841ASystem for determining the rights of object access for a server process by combining them with the rights of the client processDIGITAL EQUIPMENT CORP·Filed 1993·Granted Jun 14, 1994·542 cites·8 claims
- 4297US5309437ABridge-like internet protocol routerDIGITAL EQUIPMENT CORP·Filed 1990·Granted May 3, 1994·432 cites·26 claims
- 4397US5260999AFilters in license management systemDIGITAL EQUIPMENT CORP·Filed 1992·Granted Nov 9, 1993·1.1k cites·12 claims
- 4497US5198753AIntegrated circuit test fixture and methodDIGITAL EQUIPMENT CORP·Filed 1990·Granted Mar 30, 1993·171 cites·36 claims
- 4597US5193151ADelay-based congestion avoidance in computer networksDIGITAL EQUIPMENT CORP·Filed 1989·Granted Mar 9, 1993·342 cites·27 claims
- 4697US5138615AReconfiguration system and method for high-speed mesh connected local area networkDIGITAL EQUIPMENT CORP·Filed 1989·Granted Aug 11, 1992·464 cites·4 claims
- 4797US5129083AConditional object creating system having different object pointers for accessing a set of data structure objectsDIGITAL EQUIPMENT CORP·Filed 1989·Granted Jul 7, 1992·265 cites·8 claims
- 4897US5088036AReal time, concurrent garbage collection system and methodDIGITAL EQUIPMENT CORP·Filed 1989·Granted Feb 11, 1992·363 cites·7 claims
- 4997US5088091AHigh-speed mesh connected local area networkDIGITAL EQUIPMENT CORP·Filed 1989·Granted Feb 11, 1992·262 cites·32 claims
- 5097US5075956AMethod of making recording heads with side shieldsDIGITAL EQUIPMENT CORP·Filed 1990·Granted Dec 31, 1991·170 cites·52 claims
Showing the top 50 of 2,283 patent records by PatentIndex Score.
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