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Yu-Tang Hwang

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  • Clinton, IA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of catalyst deactivation
    • Patent number 4,634,744
    • Issue date Jan 6, 1987
    • Chemplex Company
    • Yu-Tang Hwang
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polymerization method
    • Patent number 4,567,243
    • Issue date Jan 28, 1986
    • Chemplex Company
    • Thomas J. Pullukat
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polymerization catalysts and methods
    • Patent number 4,524,141
    • Issue date Jun 18, 1985
    • Chemplex Company
    • Thomas J. Pullukat
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for preparing a polymerization catalyst
    • Patent number 4,196,098
    • Issue date Apr 1, 1980
    • Chemplex Company
    • Yu-Tang Hwang
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Method of polymerizing olefins
    • Patent number 4,150,208
    • Issue date Apr 17, 1979
    • Chemplex Company
    • Yu-Tang Hwang
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Method of making polymers and copolymers of 1-olefins
    • Patent number 4,147,849
    • Issue date Apr 3, 1979
    • Chemplex Company
    • Joseph Liu
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Method of polymerization
    • Patent number 4,146,694
    • Issue date Mar 27, 1979
    • Chemplex Company
    • Yu-Tang Hwang
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polymerization catalyst and method
    • Patent number 4,128,500
    • Issue date Dec 5, 1978
    • Yu-Tang Hwang
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Method of polymerizing olefins
    • Patent number 4,117,217
    • Issue date Sep 26, 1978
    • Chemplex Company
    • Yu-Tang Hwang
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polymerization catalyst and method
    • Patent number 4,096,093
    • Issue date Jun 20, 1978
    • Chemplex Company
    • Yu-Tang Hwang
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Catalyst and method
    • Patent number 4,071,673
    • Issue date Jan 31, 1978
    • Chemplex Company
    • Yu-Tang Hwang
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Catalyst and method
    • Patent number 4,064,336
    • Issue date Dec 20, 1977
    • Chemplex Company
    • Yu-Tang Hwang
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polyolefin catalyst and method for its preparation
    • Patent number 4,053,437
    • Issue date Oct 11, 1977
    • Chemplex Company
    • Joseph Liu
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Supported chromium-containing catalyst and process of polymerizing...
    • Patent number 3,953,413
    • Issue date Apr 27, 1976
    • Chemplex Company
    • Yu-Tang Hwang
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...