Patents by Inventor Eva J. Tsai

Eva J. Tsai 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).

  • Brake drum caliper
    Patent number: 6957498
    Abstract: A brake drum caliper is disclosed having a beam and two jaws for measuring the inside diameter of a cylinder, with the improvement of limit stops on each jaw for accurately measuring diameter of the cylinder in at least two depths from the top of the cylinder.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: October 25, 2005
    Inventor: Eva J. Tsai