Patents by Inventor Sandip K. Mehta

Sandip K. Mehta 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).

  • Maintaining and reconstructing the history of database content modified by a series of events
    Patent number: 6959301
    Abstract: A method and a system for maintaining the history of database content when the database is modified by a sequence of events, where each event may be one of a load or a load retraction, is provided. The inventive system and method can reconstruct the state of a database as it existed at a discrete time between two successive historical events without repeating each event in the historical event sequence. A table containing deleted row information and a table containing historical information are maintained as the target table is updated to more quickly recreate historical states of the target table.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: October 25, 2005
    Assignee: Reuters Limited
    Inventors: David Rozenshtein, Sandip K. Mehta
  • Maintaining and reconstructing the history of database content modified by a series of events
    Publication number: 20020087271
    Abstract: A method and a system for maintaining the history of database content when the database is modified by a sequence of events, where each event may be one of a load or a load retraction, is provided. The inventive system and method can reconstruct the state of a database as it existed at a discrete time between two successive historical events without repeating each event in the historical event sequence. A table containing deleted row information and a table containing historical information are maintained as the target table is updated to more quickly recreate historical states of the target table.
    Type: Application
    Filed: June 11, 2001
    Publication date: July 4, 2002
    Inventors: David Rozenshtein, Sandip K. Mehta