Patents by Inventor John M. Swancara

John M. Swancara 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: D452392
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: December 25, 2001
    Assignee: Pure Water, Inc.
    Inventors: Al E. Meder, John M. Swancara
  • Patent number: D425174
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: May 16, 2000
    Assignee: Pure Water, Inc.
    Inventor: John M. Swancara