Patents by Inventor James Roger Nelson

James Roger Nelson 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).

  • Publication number: 20070151273
    Abstract: Our System (20) is comprised of a small Battery-Powered, Split-Unit, Air-to-Air Heat Pump (30 & 50); and associated circuitry (60) to charge and condition the battery or batteries (41) any time an external power source (16) is available. The System (20) provides protection for the batteries (41) and systems of the vehicle (10) on which the System (20) is mounted when the vehicle alternator (15) is not producing any voltage.
    Type: Application
    Filed: October 17, 2006
    Publication date: July 5, 2007
    Inventors: James Roger Nelson, John Robert McNaught