Patents by Inventor Pei Chun Chang

Pei Chun Chang 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).

  • Tape dispenser
    Patent number: D609274
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: February 2, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Pei Chen Hsu, Pei Chun Chang, Ya Lan Kuo