Patents by Inventor David N. Neustein

David N. Neustein 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).

  • Energy conservation
    Patent number: 4196718
    Abstract: A solar heating system for a building in which the liquid in the solar cell is subjected both to radiation from the sun and to the heat from the exhaust chimney gases from the building furnace.
    Type: Grant
    Filed: July 24, 1978
    Date of Patent: April 8, 1980
    Inventor: David N. Neustein