John Wallace

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Franklin, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for backing up data before updating the data a...
- Patent number 6,269,381
- Issue date Jul 31, 2001
- EMC Corporation
- Edgar J. St. Pierre
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for undoing changes to computer memory
- Patent number 6,141,773
- Issue date Oct 31, 2000
- EMC Corporation
- Edgar J. St. Pierre
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital data processor with improved backup storage
- Patent number 5,276,860
- Issue date Jan 4, 1994
- Epoch Systems, Inc.
- Richard W. Fortier
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital data storage system with improved data migration
- Patent number 5,276,867
- Issue date Jan 4, 1994
- Epoch Systems, Inc.
- Gregory Kenley
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
File server system having high-speed write execution
- Patent number 5,218,695
- Issue date Jun 8, 1993
- Epoch Systems, Inc.
- David Noveck
- G06 - COMPUTING CALCULATING COUNTING