Patents by Inventor Davies T. H. Guan

Davies T. H. Guan 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).

  • Patent number: D297817
    Type: Grant
    Filed: January 27, 1986
    Date of Patent: September 27, 1988
    Assignee: Designtime Company Limited
    Inventor: Davies T. H. Guan
  • Patent number: D300411
    Type: Grant
    Filed: June 24, 1986
    Date of Patent: March 28, 1989
    Assignee: Designtime Company Limited
    Inventor: Davies T. H. Guan
  • Patent number: D300412
    Type: Grant
    Filed: June 24, 1986
    Date of Patent: March 28, 1989
    Assignee: Designtime Company Limited
    Inventor: Davies T. H. Guan