Patents by Inventor Gai Wai Yang

Gai Wai Yang 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).

  • Book marker
    Patent number: 6250249
    Abstract: A book marker is disclosed which comprises at least first, second, and third jaw members, the first and second jaw members being hingedly connected at a common pivotal axis to define a first independently operable clamp selectively positionable between clamped and unclamped positions thereof, and the second and third jaw members being hingedly connected at a common pivotal axis to define a second independently operable clamp selectively positionable between clamped and unclamped positions thereof.
    Type: Grant
    Filed: September 1, 1999
    Date of Patent: June 26, 2001
    Inventor: Gai Wai Yang