Patents by Inventor Charles W. Sanvik

Charles W. Sanvik 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).

  • HEATING SYSTEM AND RELATED METHODS
    Publication number: 20100232877
    Abstract: A method and a system for heating such as ground heating or curing concrete.
    Type: Application
    Filed: July 16, 2009
    Publication date: September 16, 2010
    Applicant: Green Power Technology, Inc.
    Inventors: Charles W. Sanvik, James A. Olson, Shawn R. Yurczyk