Patents by Inventor Eamon K. Doyle

Eamon K. Doyle 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 in-use indicator system
    Patent number: 6225897
    Abstract: A warning system for notifying others that a cellular telephone is in use in a vehicle. The system includes a transmitter electrically coupled to a cellular telephone for transmitting an in-use signal when the telephone is activated. A receiver for receiving the in-use signal. An indicator, responsive to the receiver receiving the in-use signal, for visually indicating that a cellular telephone is in use in a vehicle.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: May 1, 2001
    Assignee: Gordon Helm
    Inventors: Eamon K. Doyle, Gordon L. Helm