Patents by Inventor Keen Shyu

Keen Shyu 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: D313868
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: January 15, 1991
    Inventor: Keen Shyu