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Ai-fu Chang

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  • Humble, TX, US
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    SYSTEMS AND TECHNIQUES FOR HEATING POLYMER REACTOR FLASHLINES
    • Publication number 20230399419
    • Publication date Dec 14, 2023
    • Chevron Phillips Chemical Company LP
    • Ai-Fu Chang
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    System and Method for Rapid Dump Tank Heating
    • Publication number 20210261694
    • Publication date Aug 26, 2021
    • Chevron Phillips Chemical Company LP
    • Joseph A. CURREN
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    System and Method for Rapid Dump Tank Heating
    • Publication number 20200354483
    • Publication date Nov 12, 2020
    • Chevron Phillips Chemical Company LP
    • Joseph A. CURREN
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Separations With Ionic Liquid Solvents
    • Publication number 20170305817
    • Publication date Oct 26, 2017
    • Chevron Phillips Chemical Company LP
    • Lei JI
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Component Separations in Polymerization
    • Publication number 20170145125
    • Publication date May 25, 2017
    • Chevron Phillips Chemical Company LP
    • Scott E. Kufeld
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Ethylene Recovery by Absorption
    • Publication number 20160297729
    • Publication date Oct 13, 2016
    • Chevron Phillips Chemical Company LP
    • John D. HOTTOVY
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Component Separations in Polymerization
    • Publication number 20160152745
    • Publication date Jun 2, 2016
    • Chevron Phillips Chemical Company LP
    • Scott E. Kufeld
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Hydrocarbon Recovery with Pressure Swing Adsorption
    • Publication number 20160144313
    • Publication date May 26, 2016
    • Chevron Phillips Chemical Company LP
    • Lei JI
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Separations With Ionic Liquid Solvents
    • Publication number 20160096784
    • Publication date Apr 7, 2016
    • Chevron U.S.A. Inc.
    • Lei JI
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Ethylene Separation with Temperature Swing Adsorption
    • Publication number 20160030878
    • Publication date Feb 4, 2016
    • Chevron Phillips Chemical Company LP
    • Lei JI
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Ethylene Recovery by Absorption
    • Publication number 20160023966
    • Publication date Jan 28, 2016
    • Chevron Phillips Chemical Company LP
    • John D. HOTTOVY
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Component Separations in Polymerization
    • Publication number 20150267027
    • Publication date Sep 24, 2015
    • Chevron Phillips Chemical Company LP
    • Scott E. Kufeld
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Application

    Component Separations in Polymerization
    • Publication number 20150232396
    • Publication date Aug 20, 2015
    • Chevron Phillips Chemical Company LP
    • Scott E. Kufeld
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Application

    Separations With Ionic Liquid Solvents
    • Publication number 20150133711
    • Publication date May 14, 2015
    • Chevron Phillips Chemical Company LP
    • Lei JI
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Separations With Ionic Liquid Solvents
    • Publication number 20150030524
    • Publication date Jan 29, 2015
    • Chevron Phillips Chemical Company LP
    • Lei JI
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Component Separations in Polymerization
    • Publication number 20120232231
    • Publication date Sep 13, 2012
    • Chevron Phillips Chemical Company LP
    • Scott E. Kufeld
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Ethylene Recovery by Absorption
    • Publication number 20120232232
    • Publication date Sep 13, 2012
    • Chevron Phillips Chemical Company LP
    • John D. Hottovy
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...