Patents by Inventor Shawn Bratt

Shawn Bratt 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).

  • Recovery of Hydrofluoroalkanes
    Publication number: 20090320519
    Abstract: A mixture of air and one or more halogenated alkanes is directed to a gas separation membrane where it is separated into an oxygen, nitrogen, and moisture-enriched and halogenated alkane-depleted permeate and a halogenated alkane-enriched and oxygen, nitrogen, and moisture-depleted retentate. The retentate is directed to a cryogenic condenser where an amount of halogenated alkane is condensed therein.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Applicant: American Air Liquide, Inc.
    Inventors: Sarang Gadre, Shawn Bratt, Edgar S. Sanders, JR.
  • EFFLUENT GAS RECOVERY PROCESS FOR SILICON PRODUCTION
    Publication number: 20090165646
    Abstract: Effluent gas from a polysilicon reactor is directed to a gas separation membrane with a permeate gas being recycled to the reactor and the retentate being chilled with a cryogenic condenser using liquid cryogen. Liquid cryogen vaporized by the hot effluent gas may be stored or used to seal and/or chill the reactor or blanket a Si feed to a SiHCl3 reactor.
    Type: Application
    Filed: December 31, 2007
    Publication date: July 2, 2009
    Inventors: Sarang Gadre, Shawn Bratt