Patents by Inventor Ching-Tsung Yeh

Ching-Tsung Yeh 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).

  • Foldable bicycle
    Patent number: 5398955
    Abstract: A foldable bicycle including (a) a stem tube including a first section slidably mounted in a second section pivotally linked to a third section, a handle bar mounted on the first section of the stem tube, the third section of the stem tube rotatably mounted in a head tube and (b) a top tube comprising a first section pivotally linked to a second section, the first section of the top tube fixed to the head tube, the second section of the top tube fixed to a downtube and a seat tube wherein a seat post is slidably mounted.
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: March 21, 1995
    Inventor: Ching-Tsung Yeh