Patents by Inventor Douglas L. Chrisitans

Douglas L. Chrisitans 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).

  • HYBRID ENVIRONMENTAL CONDITIONING SYSTEM
    Publication number: 20100064701
    Abstract: An environmental conditioning system has a compressor for compressor air in an air flow path. A turbine drives the compressor and is coupled to the compressor. An evaporator is in communication with the compressor. The evaporator is configured to cool air from the compressor.
    Type: Application
    Filed: September 12, 2008
    Publication date: March 18, 2010
    Inventors: Louis J. Bruno, Douglas L. Chrisitans