Patents by Inventor Tommy Cheung

Tommy Cheung 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).

  • Spotlight
    Patent number: D526731
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: August 15, 2006
    Assignee: Autotek Products Limited
    Inventors: KemCheng Cheung, Tommy Cheung
  • Wind generator
    Patent number: D598376
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: August 18, 2009
    Assignee: Autotek Products Limited
    Inventors: Kem Cheng Cheung, Tommy Cheung