Patents by Inventor Li-Chen Hu Huang

Li-Chen Hu Huang 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).

  • Multipurpose calculator case
    Patent number: D319651
    Type: Grant
    Filed: October 10, 1989
    Date of Patent: September 3, 1991
    Assignee: Pro Eton Trading Co., Ltd.
    Inventor: Li-Chen Hu Huang
  • Stapler
    Patent number: D331001
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: November 17, 1992
    Assignee: Pro Eton Corporation
    Inventor: Li-Chen Hu Huang
  • Casing for a marking instrument
    Patent number: D331070
    Type: Grant
    Filed: October 23, 1990
    Date of Patent: November 17, 1992
    Assignee: Pro Eton Corporation
    Inventor: Li-Chen Hu Huang