Patents by Inventor Stephen Yeh

Stephen 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).

  • Stage-by-stage tightness-adjustable hair clip structure
    Patent number: 6311700
    Abstract: A stage-by-stage tightness-adjustable hair clip structure includes a base plate, a leaf spring and a clip plate. Each end of the base plate is disposed with a pair of latch boards. Each end of the leaf spring is disposed with a pair of fork legs. Each end of the clip plate is disposed with a pair of latch lugs. One end of the hair clip can be a pivot end, while the other end thereof can be an openable end, whereby the hair clip is openable only at one end. Alternatively, both ends of the hair clip are openable ends, whereby the hair clip is openable at both ends. The tightness between the clip plate and the base plate is adjustable stage by stage according to the amount of a user's hair.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: November 6, 2001
    Inventor: Stephen Yeh