Patents by Inventor Louis Popiolkowski

Louis Popiolkowski 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: D309227
    Type: Grant
    Filed: October 8, 1986
    Date of Patent: July 17, 1990
    Inventor: Louis Popiolkowski