TREA

Dieter Sonnentag

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  • Schoenaich, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Intrusion detection security keyboard
    • Patent number 5,872,560
    • Issue date Feb 16, 1999
    • International Business Machines Corporation
    • Hartmut Droege
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Security foil with shielding from electromagnetic radiation
    • Patent number 5,796,335
    • Issue date Aug 18, 1998
    • International Business Machines Corporation
    • Hartmut Droege
    • G08 - SIGNALLING
  • Information Patent Grant

    Point of sale terminal
    • Patent number D393479
    • Issue date Apr 14, 1998
    • IBM Corporation
    • Harmut Droege
    • D18 - Printing and office machinery
  • Information Patent Grant

    Point of sale terminal
    • Patent number D381675
    • Issue date Jul 29, 1997
    • IBM Corporation
    • Harmut Droege
    • D18 - Printing and office machinery
  • Information Patent Grant

    Point of sale terminal
    • Patent number D379825
    • Issue date Jun 10, 1997
    • IBM Corporation
    • Hartmut Droege
    • D18 - Printing and office machinery
  • Information Patent Grant

    Control unit with a printer
    • Patent number D372936
    • Issue date Aug 20, 1996
    • IBM Corporation
    • Harmut Droege
    • D18 - Printing and office machinery