TREA

Charles J. Hsiung

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  • Monterey Park, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dual mode camera
    • Patent number 5,049,910
    • Issue date Sep 17, 1991
    • Charles J. Hsiung
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Convertible film cartridge and toy device
    • Patent number 4,992,814
    • Issue date Feb 12, 1991
    • Charles J. Hsiung
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Adjustable film cartridge
    • Patent number 4,887,111
    • Issue date Dec 12, 1989
    • Charles J. Hsiung
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY