Patents by Inventor Kuan-Jen Chi

Kuan-Jen Chi 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).

  • Method for forming patterns on shoe sole
    Patent number: 5586354
    Abstract: A method for forming a pattern on a shoe sole includes preparing a film having a pattern attaching and transferring to an EVA material. The EVA material is then molded so as to allow infiltrating of the pattern in the EVA material and so as to form a shoe sole. The pattern is solidly formed on the outer peripheral surface of the shoe sole and will not be easily worn out. The shoe sole includes a cavity formed in the bottom portion for receiving an insert. The insert may be made of waste or recycled EVA materials.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: December 24, 1996
    Assignee: Kuan M. Chi
    Inventor: Kuan-Jen Chi