Patents by Inventor Joel David Bickford

Joel David Bickford 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).

  • Broadband double-balanced frequency mixer
    Patent number: 6205324
    Abstract: The invention provides a broadband double-balanced mixer capable of operating across a range of frequencies from millimeter to microwave. The mixer includes a Wilkinson type splitter.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: March 20, 2001
    Assignee: Agilent Technologies Inc.
    Inventor: Joel David Bickford
  • Broad-bandwidth balun with polyiron cones and a conductive rod in a conductive housing
    Patent number: 6084485
    Abstract: The invention provides a balun capable of operation over a range including micro and millimeter wavelengths. The balun includes a set of ferrite beads, and a set of polyiron cones. The ferrite beads and polyiron cones together provide signal balancing operable across a bandwidth together provide a signal balancing operable across a range of bandwidths of about 5000 to 1.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: July 4, 2000
    Assignee: Agilent Technologies, Inc.
    Inventors: Joel David Bickford, Julius K Botka