Patents by Inventor Dennis S. DeLorme

Dennis S. DeLorme has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Database index journaling for enhanced recovery
    Patent number: 4819156
    Abstract: A quick recovery of logical files which provide alternate views of databases is provided. Unchanged logical file pages are journaled before being changed. Transactions affecting databases covered by the logical files are also journaled. To recover a logical file, the journaled unchanged pages of the logical file that correspond to the changed pages are inserted back into the logical file, and the transactions that were journaled are processed to provide the changes to the logical file and to the database. This brings the logical file and the underlying database up to date, and in synchronization with each other.
    Type: Grant
    Filed: June 13, 1986
    Date of Patent: April 4, 1989
    Assignee: International Business Machines Corporation
    Inventors: Dennis S. DeLorme, Mark L. Holm, Wilson D. Lee, Peter B. Passe, Gary R. Ricard, George D. Timms, Jr., Larry W. Youngren