Patents by Inventor Laura Zane Kolmar

Laura Zane Kolmar 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).

  • Patent number: 6350211
    Abstract: A simulated image of a batter facing a pitcher is provided for use in pitching practice. The lower portion of the batter includes one or more stakes which are inserted into the ground and provide a stable support. By positioning the simulated batter in an appropriate place near “home plate”, a pitcher can use the batter as a reference to determine the location of the strike zone. The size of the batter can be adjusted to vary the size of the strike zone. A ball detection apparatus and audio output can be provided to indicate when a pitch is detected and whether the pitch is a ball or a strike.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: February 26, 2002
    Inventor: Laura Zane Kolmar