Patents by Inventor Daniel Kwan Chong Chew

Daniel Kwan Chong Chew 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).

  • Multifilar helix antennas
    Patent number: 7142170
    Abstract: A multifilar helix antenna includes helical antenna filaments, each filament having a square waveform pattern along its length, resulting in reduced axial length. A multifilar helix antenna according to the invention includes helical antenna filaments, each filament incorporating a microstrip spur-line band stop filter enabling multi-band operation.
    Type: Grant
    Filed: February 18, 2003
    Date of Patent: November 28, 2006
    Assignee: University of Surrey
    Inventors: Simon Reza Saunders, Daniel Kwan Chong Chew