Patents by Inventor Brian Douglas Justin, Jr.

Brian Douglas Justin, Jr. 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).

  • Dual band full duplex mobile radio
    Patent number: 7250830
    Abstract: A dual band full duplex mobile radio is provided that includes a transmit portion including a dual band filter and a receive portion including a dual band filter. The dual band full duplex mobile radio further includes a circulator connecting the transmit portion and the receive portion and configured to provide transmit and receive switching.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: July 31, 2007
    Assignee: M/A Com Inc.
    Inventors: Dennis Ray Layne, John Alan Greenwood, Jr., Brian Douglas Justin, Jr.