Patents by Inventor William L. Hull, III

William L. Hull, III 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).

  • Test trunk access controller
    Patent number: 4646342
    Abstract: A test trunk access controller includes a test trunk interface controller accessed by a subscriber line assigned to a service provider, or other remote metering facility, and a test trunk interface device inter-connecting the test trunk controller with the test trunk device of a local telephone switch.
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: February 24, 1987
    Assignee: ITT Corporation
    Inventors: Franklin Hargrave, David A. Zeller, Jr., Mark G. Smith, William L. Hull, III, Francisco A. Middleton