Patents by Inventor Douglas Michael Kratz

Douglas Michael Kratz 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).

  • PORTABLE PITCHING LANE FOR SOFTBALL
    Publication number: 20200215422
    Abstract: Novel and advantageous portable pitching lanes for softball are disclosed. In one embodiment, a pitching lane for softball is disclosed comprising a foundation layer, a surface layer, and a pitching rubber. The portable pitching lane is movable from place to place when not in use, but does not move when in use.
    Type: Application
    Filed: September 16, 2019
    Publication date: July 9, 2020
    Applicant: One Corporation
    Inventors: Andrew Charles KERR, John Robert Pieritz, JR., Michael Lee Sampson, Douglas Michael Kratz