Patents by Inventor Robert H. Nichols

Robert H. Nichols 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).

  • Telephone line called number recognizer
    Patent number: 4998273
    Abstract: A party-like telephone line with plural numbers having distinguishable ringing signals on a single line is automatically connected to a facsimile or other telephone connected device for receiving incoming messages upon sensing a predetermined ring sequence with an interface, counter, timers, and comparator.
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: March 5, 1991
    Assignee: James C. Wray
    Inventor: Robert H. Nichols