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Christian Stewen

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  • Marbach, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Portable hard surface cleaning appliance
    • Patent number 12,256,875
    • Issue date Mar 25, 2025
    • Alfred Kärcher SE & Co. KG
    • Juergen Zuger
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Portable hard surface cleaning appliance
    • Patent number 10,258,207
    • Issue date Apr 16, 2019
    • Alfred Kärcher SE & Co. KG
    • Christian Stewen
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Vacuum cleaning device
    • Patent number 8,186,005
    • Issue date May 29, 2012
    • Alfred Kaercher GmbH & Co. KG
    • Christian Stewen
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Method for cleaning the filters of a vacuum cleaner and vacuum clea...
    • Patent number 7,867,304
    • Issue date Jan 11, 2011
    • Alfred Kaercher GmbH & Co. KG
    • Christian Stewen
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

  • Information Patent Application

    PORTABLE HARD SURFACE CLEANING APPLIANCE
    • Publication number 20200383532
    • Publication date Dec 10, 2020
    • Alfred Kärcher SE & Co. KG
    • Juergen Zuger
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    PORTABLE HARD SURFACE CLEANING APPLIANCE
    • Publication number 20160128528
    • Publication date May 12, 2016
    • Alfred Karcher GmbH & Co. KG
    • Christian Stewen
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    Vacuum cleaner
    • Publication number 20090205159
    • Publication date Aug 20, 2009
    • Alfred Kaercher GmbH & Co. KG
    • Christian Stewen
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Method for cleaning the filters of a vacuum Cleaner and vacuum clea...
    • Publication number 20080092498
    • Publication date Apr 24, 2008
    • Alfred Kaercher GmbH & Co. KG
    • Christian Stewen
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Vacuum cleaning device
    • Publication number 20080086835
    • Publication date Apr 17, 2008
    • Alfred Kaercher GmbH & Co. KG
    • Christian Stewen
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    Vacuum-cleaner nozzle
    • Publication number 20070039128
    • Publication date Feb 22, 2007
    • Alfred Kaercher GmbH & Co. KG
    • Hendrik Rust
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...