Patents by Inventor Stephen Ralls

Stephen Ralls 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).

  • Turbine engine with interstage heat transfer
    Publication number: 20070017208
    Abstract: Efficiency and/or power are increased in a turbine engine by using a self-contained, passive heat transfer device, such as a heat pipe, to transfer heat from working fluid in one section of the engine to working fluid in another section of the engine.
    Type: Application
    Filed: January 20, 2006
    Publication date: January 25, 2007
    Inventor: Stephen Ralls