Patents by Inventor Lloyd W. Wren

Lloyd W. Wren 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).

  • Microwave absorber
    Patent number: 4480256
    Abstract: An improved microwave absorber for coupling and absorbing radio frequency energy used for communication, navigation and radar systems. The structure has a conformal energy receiving surface for receipt on reflecting surfaces or surfaces supporting unwanted surface waves. The microwave absorber provides an effective means for antenna radiation pattern control, reduction of antenna to antenna coupling caused by reflections or surface waves and improved low angle response with a minimal effect on high angle of incidence performance.
    Type: Grant
    Filed: March 23, 1983
    Date of Patent: October 30, 1984
    Assignee: The Boeing Company
    Inventor: Lloyd W. Wren
  • Microwave absorber
    Patent number: 4381510
    Abstract: A microwave absorber for coupling and absorbing radio frequency energy used for communication, navigation and radar systems. The structure has a conformal energy receiving surface for receipt on reflecting surfaces or surfaces supporting unwanted surface waves. The microwave absorber provides an effective means for antenna radiation pattern control, and reduction of antenna to antenna coupling caused by reflections or surface waves.
    Type: Grant
    Filed: August 18, 1981
    Date of Patent: April 26, 1983
    Assignee: The Boeing Co.
    Inventor: Lloyd W. Wren