Patents by Inventor Young-Cheol Kweon

Young-Cheol Kweon 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: 6067684
    Abstract: A toothbrush with silicon rubber bristles is disclosed. The bristles are soft and have both a high polishing power and a high water repellency, thus effectively cleaning teeth without injuring one's teeth or gums. The toothbrush consists of a long handle with a longitudinal opening at one end. A brushing head with the silicon rubber bristles is attached to the opening of the handle. The bristles easily remove foreign substances such as food remnants from teeth or gums and effectively brush the inside, outside and top surfaces of each tooth simultaneously, thus saving time while brushing teeth. The bristles include a plurality of finely rugged bristles.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: May 30, 2000
    Assignee: Young-Cheol Kweon
    Inventor: Young-Cheol Kweon