Patents by Inventor David J. Crone

David J. Crone 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).

  • Communication device sharing on a local area network
    Patent number: 5680303
    Abstract: The X.25 device driver allows an X.25 card to be shared by workstations on a local area network. The approach used for the X.25 device driver may be used for sharing other devices on a local area network as well. The device driver for the device to be shared is implemented as a file system so that the device's location is hidden from application programs. Because the device driver is a file system driver, applications may use standard system calls, rather than device specific calls, to access the device.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 21, 1997
    Assignee: CompuServe Incorporated
    Inventors: Mark A. Libucha, David J. Crone