Patents by Inventor Randall R. Theken

Randall R. Theken 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).

  • Ergonomic handle
    Patent number: 5556092
    Abstract: A handle grip is provided which has undulating surfaces to provide a comfortable, non-slip interface with the user's hand, the handle having first and second concentric gripping ridges separated by gripping valleys from a thumb ridge and reach other, respectively. The valleys include a plurality of ovoid dimples to increase the surface of interface between the user's fingers and the handle.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: September 17, 1996
    Inventor: Randall R. Theken