TREA

Chang H. Lee

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  • Houston, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vertical gas induced flotation cell
    • Patent number 7,157,007
    • Issue date Jan 2, 2007
    • National Tank Company
    • Theodore C. Frankiewicz
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...

Patents Applicationslast 30 patents

  • Information Patent Application

    CARBON BLACK PELLETS AND METHOD OF FORMING SAME
    • Publication number 20100143585
    • Publication date Jun 10, 2010
    • Chang H. Lee
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Carbon black pellets and method of forming same
    • Publication number 20080182107
    • Publication date Jul 31, 2008
    • Chang H. Lee
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Vertical gas induced flotation cell
    • Publication number 20040256325
    • Publication date Dec 23, 2004
    • Theodore C. Frankiewicz
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL