Patents by Inventor Wen Chin Rau

Wen Chin Rau 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).

  • Publication number: 20090188523
    Abstract: An improved structure of floss stick includes a body, two forks extended from a side of the body, and a strip-shaped floss with a predetermined width having two ends stretched and fixed respectively to a position close to a free end of the two forks. When using the floss stick, the strip-shaped floss is put through a teeth interstice of a user for making surface contact between the strip-shaped floss and teeth at both sides of the teeth interstice, in order to increase cleaning range of the floss, and save time of teeth cleaning.
    Type: Application
    Filed: January 24, 2008
    Publication date: July 30, 2009
    Inventor: Wen Chin Rau
  • Publication number: 20090188522
    Abstract: An improved structure of floss stick includes a body, two forks extending downward from a side of the body and a handle extending laterally from the body, The floss stick has plural lengths of flosses. The two ends of each of flosses are respectively connected to the two forks, such that the flosses are parallely arranged and spaced from each other. When a user utilizes the floss stick for flossing, the flosses are inserted between the user's teeth, and the handled is held to move to and fro along the teeth sides and removes the food and plaque therefrom.
    Type: Application
    Filed: January 24, 2008
    Publication date: July 30, 2009
    Inventor: Wen Chin Rau