Patents by Inventor Chong C. Woo

Chong C. Woo 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 setting gem stone in semi-precious stone
    Patent number: 5432988
    Abstract: A method for setting a gem stone in a semi-precious stone, capable of achieving an easy setting and thereby greatly reducing the labor and the work time.
    Type: Grant
    Filed: August 17, 1994
    Date of Patent: July 18, 1995
    Assignee: Pyoung Su Kim
    Inventor: Chong C. Woo