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PATENTS

Text of patents is confidential until patent has been granted. Therefore, some documents are only available from the internal IBM version of this page.

Patent (PDF) Locking and Unlocking Mechanism for Controlling Concurrent Access to Objects

D. Bacon
United States Patent number 6247025, issued 12 June 2001.
IBM docket number YO997-225, filed July 18, 1997.

Fast nested locking technology developed for Java. For more information, see the paper and the presentation.


Patent Pending

Text (Lotus Word Pro) Figures (Lotus Freelance) Method to Provide Concurrency Control over Objects Without Atomic Operations on Non-Shared Objects

D. Bacon and S. Fink
Docket number YOR8-1999-0473, filed August 7, 2000.

A lazy locking protocol that normally avoids any global synchronization.