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Kun-Jen Chang

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  • Tainan Hsien, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Single-handle can opener
    • Patent number 6,829,832
    • Issue date Dec 14, 2004
    • Alston Technologies Development Co., Ltd.
    • Kun-Jen Chang
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Grant

    Can opener with two pivotally connected levers in laid down position
    • Patent number 6,691,419
    • Issue date Feb 17, 2004
    • Alston Technologies Development Co., Ltd.
    • Kun-Jen Chang
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Grant

    Peeler
    • Patent number D479445
    • Issue date Sep 9, 2003
    • Alston Technologies Development Co., Ltd.
    • Kun-Jen Chang
    • D07 - Equipment for preparing or serving food or drink not elsewhere specified
  • Information Patent Grant

    Can opener
    • Patent number D466771
    • Issue date Dec 10, 2002
    • Alston Technologies Development Co., Ltd.
    • Kun-Jen Chang
    • D08 - Tools and hardware
  • Information Patent Grant

    Corkscrew
    • Patent number D444360
    • Issue date Jul 3, 2001
    • Alston Technologies Development Co., Ltd.
    • Kun-Jen Chang
    • D08 - Tools and hardware
  • Information Patent Grant

    Corkscrew
    • Patent number D429613
    • Issue date Aug 22, 2000
    • Alston Technologies Development Co., Ltd.
    • Kun-Jen Chang
    • D08 - Tools and hardware
  • Information Patent Grant

    Corkscrew
    • Patent number D413777
    • Issue date Sep 14, 1999
    • Kun-Jen Chang
    • D08 - Tools and hardware
  • Information Patent Grant

    Side cutting can opener with a double grip
    • Patent number 5,946,811
    • Issue date Sep 7, 1999
    • Alston Development Co., Ltd.
    • Kun-Jen Chang
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Grant

    Can opener
    • Patent number D404270
    • Issue date Jan 19, 1999
    • Kun-Jen Chang
    • D08 - Tools and hardware
  • Information Patent Grant

    Can opener
    • Patent number D404269
    • Issue date Jan 19, 1999
    • Kun-Jen Chang
    • D08 - Tools and hardware

Patents Applicationslast 30 patents