Patents by Inventor Jon D. Smirl

Jon D. Smirl 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).

  • Method and system for open file caching in a networked computer system
    Patent number: 5261051
    Abstract: A method and means for improving the performance of distributed computer systems including a file server and a plurality of remote workstations. A system workstation issues a request from one of the remote workstations to open a batch file resident on the file server in a sharing mode. The request is automatically converted into a request to open the file in an OPlocked/OPbatched exclusive mode. The file server then determines whether the requested batch file has been opened by another workstation. The requested file is opened in an OPlocked/OPbatched exclusive mode if the requested file is not currently open, wherein the batch file is copied to a workstation and executed locally while keeping the batch file open on the file server. The file is opened in a sharing mode if the requested batch file is currently open.
    Type: Grant
    Filed: August 14, 1989
    Date of Patent: November 9, 1993
    Assignee: Microsoft Corporation
    Inventors: Kenneth E. Masden, Jon D. Smirl, John W. King, Darryl E. Rubin