Patents by Inventor Danny Chan Chi Hung

Danny Chan Chi Hung 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).

  • Combined calculator and clipboard
    Patent number: D284976
    Type: Grant
    Filed: August 13, 1984
    Date of Patent: August 5, 1986
    Assignee: Dah Sun Electronics Company, Limited
    Inventor: Danny Chan Chi Hung
  • Combined clipboard and calculator
    Patent number: D294270
    Type: Grant
    Filed: March 26, 1985
    Date of Patent: February 16, 1988
    Assignee: Dah Sun Electronics Company Limited
    Inventor: Danny Chan Chi Hung