Patents by Inventor Thomas G. Colman

Thomas G. Colman 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).

  • Radio frequency field strength enhancer
    Patent number: 5050236
    Abstract: A radio frequency field strength enhancement system (402) having a member (404) with at least one tuning impedance (405) for adjusting a desired frequency response associated with the member (404) and means for retaining (408) the member (404) in close proximity to a radio frequency communication device (401) having an integrally mounted antenna system (214). When the radio frequency communication device (401) is brought within close proximity of the RF field strength enhancer (402), the power received or transmitted by the integrally mounted antenna system (214) in the RF communication device (401) is enhanced.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: September 17, 1991
    Assignee: Motorola Inc.
    Inventors: Thomas G. Colman, Gregg Rasor