Patents by Inventor Stephen J. Walko

Stephen J. Walko 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).

  • Pool table brush
    Patent number: D283851
    Type: Grant
    Filed: June 18, 1984
    Date of Patent: May 20, 1986
    Assignee: Crystal Leisure, Inc.
    Inventor: Stephen J. Walko