Inventor · disambiguated record
Douglas E. Morrissey
Also filed as: MORRISSEY DOUGLAS · MORRISSEY DOUGLAS E
15 granted patents·987 citations·filing 1993–2013
95Inventor score
Top patents by PatentIndex Score
15 records- 0194US6314501B1Computer 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
- 0287US8130019B1Clock signal propagation method for integrated circuits (ICs) and integrated circuit making use of sameAWAD TOM·Filed 2009·Granted Mar 6, 2012·21 cites·28 claims
- 0385US6438659B1Directory based cache coherency system supporting multiple instruction processor and input/output cachesUNISYS CORP·Filed 2000·Granted Aug 20, 2002·38 cites·8 claims
- 0477US8689218B1Method for sharing a resource and circuit making use of sameAWAD TOM·Filed 2009·Granted Apr 1, 2014·10 cites·42 claims
- 0574US6052760AComputer system including plural caches and utilizing access history or patterns to determine data ownership for efficient handling of software locksUNISYS CORP·Filed 1997·Granted Apr 18, 2000·76 cites·6 claims
- 0673US6014709AMessage flow protocol for avoiding deadlocksUNISYS CORP·Filed 1997·Granted Jan 11, 2000·71 cites·31 claims
- 0773US5463762AI/O subsystem with header and error detection code generation and checkingUNISYS CORP·Filed 1993·Granted Oct 31, 1995·67 cites·20 claims
- 0872US6092156ASystem and method for avoiding deadlocks utilizing split lock operations to provide exclusive access to memory during non-atomic operationsUNISYS CORP·Filed 1997·Granted Jul 18, 2000·56 cites·25 claims
- 0969US5832310ASerial I/O channel having dependent and synchronous sources of control data and user defined dataUNISYS CORP·Filed 1997·Granted Nov 3, 1998·63 cites·10 claims
- 1064US8543750B1Method for sharing a resource and circuit making use of sameAWAD TOM·Filed 2009·Granted Sep 24, 2013·3 cites·22 claims
- 1163US6389515B1System and method for avoiding deadlocks utilizing split lock operations to provide exclusive access to memory during non-atomic operationsUNISYS CORP·Filed 2000·Granted May 14, 2002·8 cites·20 claims
- 1262US6587931B1Directory-based cache coherency system supporting multiple instruction processor and input/output cachesUNISYS CORP·Filed 1997·Granted Jul 1, 2003·35 cites·36 claims
- 1362US5553302ASerial I/O channel having independent and asynchronous facilities with sequence recognition, frame recognition, and frame receiving mechanism for receiving control and user defined dataUNISYS CORP·Filed 1993·Granted Sep 3, 1996·46 cites·19 claims
- 1460US6049845ASystem and method for providing speculative arbitration for transferring dataUNISYS CORP·Filed 1997·Granted Apr 11, 2000·39 cites·9 claims
- 1551US9069906B2Method for sharing a resource and circuit making use of sameOCTASIC INC·Filed 2013·Granted Jun 30, 2015·0 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →