TREA

Andrew T. C. Liu

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  • York, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dental prosthesis
    • Patent number 6,843,654
    • Issue date Jan 18, 2005
    • Dentsply Research & Development Corp.
    • Andrew T. C. Liu
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Abrasion resistant dental composition product and process
    • Patent number 6,384,107
    • Issue date May 7, 2002
    • Dentsply Research & Development Corp.
    • Andrew T. C. Liu
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Denture
    • Patent number 6,139,322
    • Issue date Oct 31, 2000
    • Dentsply Research & Development Corp.
    • Andrew T. C. Liu
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Method of making a tooth mold
    • Patent number 5,452,219
    • Issue date Sep 19, 1995
    • Dentsply Research & Development Corp.
    • Barry D. Dehoff
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents