Patents by Inventor Richard E. Baldwin

Richard E. Baldwin 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).

  • Solar greenhouse
    Patent number: 4195441
    Abstract: A solar greenhouse wherein plants are grown and utilized as collectors to absorb solar radiation and produce heat laden humidified air through the process of evapotranspiration. This humidified air is then further heated by solar energy. Energy is then extracted from the humidified air by cooling the air and condensing the water vapor within the air. The extracted heat can then be stored and utilized as required to heat the greenhouse and plants.
    Type: Grant
    Filed: July 24, 1978
    Date of Patent: April 1, 1980
    Inventor: Richard E. Baldwin