Patents by Inventor Mithra S. Krishnan

Mithra S. Krishnan 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).

  • Game racquets
    Patent number: 4213608
    Abstract: A radical new game racquet consisting of a frame and ball contacting facing surfaces which can move with respect to the frame. The facing is capable of having a nonnegligible velocity in a plane tangent to the facing at a given point. The facing motion is used to produce extra spin on the ball. The facing motion can be produced by a variety of means, which are further described in the text.
    Type: Grant
    Filed: September 15, 1978
    Date of Patent: July 22, 1980
    Inventor: Mithra S. Krishnan