TREA

Yunjin Zhao

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  • Winnenden, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cleaning machine
    • Patent number D919207
    • Issue date May 11, 2021
    • Alfred Kaercher SE & Co. KG
    • Denis Dammkoehler
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Spray gun for a cleaning machine
    • Patent number D889597
    • Issue date Jul 7, 2020
    • Alfred Kaercher SE & Co. KG
    • Denis Dammkoehler
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Attachment for a floor cleaning machine
    • Patent number D815381
    • Issue date Apr 10, 2018
    • Alfred Kaercher GmbH & Co. KG
    • Denis Dammkoehler
    • D32 - Washing, cleaning, or drying machine