Patents by Inventor Sarang Gadre

Sarang Gadre 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).

  • Method and System for Membrane-Based Gas Recovery
    Publication number: 20130255483
    Abstract: A fast gas is recovered from a feed gas containing a fast gas and at least one slow gas using a gas separation membrane. A controller may control a control valve associated with a partial recycle of a permeate gas from the membrane for combining with the feed gas. A controller may control a control valve associated with the backpressure of a residue gas from the membrane.
    Type: Application
    Filed: May 20, 2013
    Publication date: October 3, 2013
    Applicant: L'Air Liquide, Societe Anonyme pour I'Etude et I'Exploitation des Procedes Georges Claude
    Inventors: Edgar S. SANDERS, JR., Sarang Gadre, Michael D. Bennett, Ian R. Roman, David J. Hassee, Indrasts Mondal
  • Method and System for Membrane-Based Gas Recovery
    Publication number: 20130247761
    Abstract: A fast gas is recovered from a feed gas containing a fast gas and at least one slow gas using a gas separation membrane. A controller may control a control valve associated with a partial recycle of a permeate gas from the membrane for combining with the feed gas. A controller may control a control valve associated with the backpressure of a residue gas from the membrane.
    Type: Application
    Filed: May 21, 2013
    Publication date: September 26, 2013
    Applicant: L'Air Liquide, Societe Anonyme pour I'Etude et Exploitation des Procedes Georges Claude
    Inventors: Edgar S. SANDERS, JR., Sarang GADRE, Michael D. BENNETT, Ian C. ROMAN, David J. HASSE, Indrasis MONDAL
  • Method and system for membrane-based gas recovery
    Patent number: 8444749
    Abstract: A fast gas is recovered from a feed gas containing a fast gas and at least one slow gas using a gas separation membrane. A controller may control a control valve associated with a partial recycle of a permeate gas from the membrane for combining with the feed gas. A controller may control a control valve associated with the backpressure of a residue gas from the membrane.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: May 21, 2013
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Edgar S. Sanders, Sarang Gadre, Michael D. Bennett, Ian C. Roman, David J. Hasse, Indrasis Mondal
  • Effluent gas recovery system in polysilicon and silane plants
    Patent number: 8187361
    Abstract: Purified SiHCl3 and/or SiCl4 are used as a sweep gas across a permeate side of a gas separation membrane receiving effluent gas from a polysilicon reactor. The combined sweep gas and permeate is recycled to the reactor.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: May 29, 2012
    Assignee: America Air Liquide, Inc.
    Inventors: Sarang Gadre, Madhava R. Kosuri
  • Effluent Gas Recovery System in Polysilicon and Silane Plants
    Publication number: 20110000257
    Abstract: Purified SiHCl3 and/or SiCl4 are used as a sweep gas across a permeate side of a gas separation membrane receiving effluent gas from a polysilicon reactor. The combined sweep gas and permeate is recycled to the reactor.
    Type: Application
    Filed: July 2, 2009
    Publication date: January 6, 2011
    Applicant: American Air Liquide, Inc.
    Inventors: Sarang Gadre, Madhava R. Kosuri
  • Method and System for Membrane-Based Gas Recovery
    Publication number: 20100313750
    Abstract: A fast gas is recovered from a feed gas containing a fast gas and at least one slow gas using a gas separation membrane. A controller may control a control valve associated with a partial recycle of a permeate gas from the membrane for combining with the feed gas. A controller may control a control valve associated with the backpressure of a residue gas from the membrane.
    Type: Application
    Filed: July 14, 2009
    Publication date: December 16, 2010
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Edgar S. Sanders, JR., Sarang Gadre, Michael D. Bennett, Ian C. Roman, David J. Hasse, Indrasis Mondal
  • Hybrid Membrane/Distillation Method and System for Removing Nitrogen from Methane
    Publication number: 20100077796
    Abstract: A hybrid gas separation membrane/cryogenic distillation method and system produces high purity gaseous methane from a gas mixture containing a majority of methane and a minority of nitrogen.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Inventors: Sarang Gadre, Bao Ha, Edgar S. Sanders, JR.
  • 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
  • EFFLUENT GAS RECOVERY PROCESS FOR SILICON PRODUCTION
    Publication number: 20090165647
    Abstract: Purified SiHCl3 is used as a sweep gas across a permeate side of a gas separation membrane receiving effluent gas from a polysilicon reactor. The combined sweep gas and permeate is recycled to the reactor.
    Type: Application
    Filed: December 31, 2007
    Publication date: July 2, 2009
    Inventor: Sarang Gadre
  • Effluent gas recovery process for silicon production
    Publication number: 20090166173
    Abstract: Purified SiHCl3 is used as a sweep gas across a permeate side of a gas separation membrane receiving effluent gas from a polysilicon reactor. The combined sweep gas and permeate is recycled to the reactor.
    Type: Application
    Filed: March 31, 2008
    Publication date: July 2, 2009
    Inventor: Sarang GADRE