Patents by Inventor Peng Sung-shan

Peng Sung-shan 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).

  • Toothbrush
    Patent number: 4429434
    Abstract: This invention offers a novel toothbrush capable of comfortably performing normal toothbrushing action, massaging the gums and teeth, and conveniently sucking and jetting out the food residues caught at the gaps between the teeth in general and between the molars in particular.
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: February 7, 1984
    Inventor: Peng Sung-shan