Patents by Inventor William J. Marsh

William J. Marsh 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).

  • Water softener cabinet
    Patent number: D245786
    Type: Grant
    Filed: July 28, 1976
    Date of Patent: September 13, 1977
    Inventor: William J. Marsh