Patents by Inventor Steven Riskowski

Steven Riskowski 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: D328689
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: August 18, 1992
    Inventor: Steven Riskowski