TREA

David Truong

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  • San Jose, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Multi-positional advanced door security lock
    • Patent number 6,557,912
    • Issue date May 6, 2003
    • International Business & Technology Corporation
    • David Truong
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Multi-positional advanced door security lock
    • Patent number 6,340,185
    • Issue date Jan 22, 2002
    • International Business & Technology Corporation
    • David Truong
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Advanced door security lock
    • Patent number 5,727,822
    • Issue date Mar 17, 1998
    • International Business & Technology Corporation
    • David Truong
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES