Patents by Inventor Beatrice Chinh

Beatrice Chinh 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).

  • METHODS FOR PRODUCING STERILE CRYOGENIC FLUIDS
    Publication number: 20110120185
    Abstract: A method for producing a sterile cryogenic fluid is disclosed. A warm gas stream is sterilized by filtration and fed to a heat exchanger resulting in a cryogenic sterile fluid being formed. The waste gas stream from the heat exchanger is fed to a second filtration unit and the warm sterile waste gas stream is fed to a second heat exchanger to produce more cryogenic sterile fluid, resulting in a more efficient use of gases employed in the sterilization process.
    Type: Application
    Filed: August 29, 2008
    Publication date: May 26, 2011
    Inventors: Ron Clark Lee, Beatrice Chinh