TREA

Alexandra Winkel

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  • Berlin, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Control elements with surface ornamentation
    • Patent number D611917
    • Issue date Mar 16, 2010
    • Siemens Aktiengesellschaft
    • Eberhard Ohlert
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Control element with surface ornamentation for an electrical device
    • Patent number D596588
    • Issue date Jul 21, 2009
    • Siemens Aktiengesellschaft
    • Eberhard Ohlert
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Control elements for an electrical device
    • Patent number D591693
    • Issue date May 5, 2009
    • Siemens Aktiengesellschaft
    • Eberhard Ohlert
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Control elements for an electrical device
    • Patent number D587215
    • Issue date Feb 24, 2009
    • Siemens Aktiengesellschaft
    • Eberhard Ohlert
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Control elements for an electrical device
    • Patent number D584245
    • Issue date Jan 6, 2009
    • Siemens Aktiengesellschaft
    • Eberhard Ohlert
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Control elements for an electrical device
    • Patent number D584244
    • Issue date Jan 6, 2009
    • Siemens Aktiengesellschaft
    • Eberhard Ohlert
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Control elements for an electrical device
    • Patent number D583778
    • Issue date Dec 30, 2008
    • Siemens Aktiengesellschaft
    • Eberhard Ohlert
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Control elements for an electrical device
    • Patent number D582355
    • Issue date Dec 9, 2008
    • Siemens Aktiengesellschaft
    • Eberhard Ohlert
    • D13 - Equipment for production, distribution, or transformation of energy