TREA

An-Cheng Chang

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  • Nashua, NH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Lipid vesicles having an alkyd as a wall-forming material
    • Patent number 5,164,191
    • Issue date Nov 17, 1992
    • Micro Vesicular Systems, Inc.
    • S. Esmail Tabibi
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Controlled release vehicle
    • Patent number 5,049,395
    • Issue date Sep 17, 1991
    • Micro Vesicular Systems, Inc.
    • An-Cheng Chang
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Particulate absorbent material
    • Patent number 4,952,550
    • Issue date Aug 28, 1990
    • Micro Vesicular Systems, Inc.
    • Donald F. H. Wallach
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE