Patents by Inventor Michael C. F. Chen

Michael C. F. Chen 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).

  • Hammer holder
    Patent number: D401462
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: November 24, 1998
    Inventors: George P. Paikos, Michael C. F. Chen
  • Hammer holder
    Patent number: D406485
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: March 9, 1999
    Inventors: George P. Paikos, Michael C. F. Chen