Patents by Inventor John Swan

John Swan 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).

  • Automatic freeze protection system for plumbing systems
    Publication number: 20050126630
    Abstract: A system operable to introduce antifreeze into the hot and cold water systems of a location responsive to a controller. The controller is operated manually. The antifreeze system is portable so that a single system may be used at multiple locations.
    Type: Application
    Filed: October 8, 2004
    Publication date: June 16, 2005
    Inventor: John Swan