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Anna Seyfarth

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  • Dortmund, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Valve seat ring
    • Patent number 11,311,936
    • Issue date Apr 26, 2022
    • Bleistahl-Produktions GmbH & Co. KG
    • Ekkehard Kohler
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Highly thermally conductive valve seat ring
    • Patent number 10,208,636
    • Issue date Feb 19, 2019
    • Bleistahl-Produktions GmbH & Co, KG
    • Ekkehard Kohler
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Highly thermally conductive valve seat ring
    • Patent number 9,702,277
    • Issue date Jul 11, 2017
    • Bleistahl-Produktions GmbH & Co. KG
    • Ekkehard Kohler
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

  • Information Patent Application

    VALVE SEAT RING
    • Publication number 20190143415
    • Publication date May 16, 2019
    • Bleistahl-Produktions GmbH &Co KG
    • Ekkehard Kohler
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Application

    HIGHLY THERMALLY CONDUCTIVE VALVE SEAT RING
    • Publication number 20170298790
    • Publication date Oct 19, 2017
    • Bleistahl-Produktions GmbH & Co. KG
    • Ekkehard Kohler
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    HIGHLY THERMALLY CONDUCTIVE VALVE SEAT RING
    • Publication number 20150322828
    • Publication date Nov 12, 2015
    • Bleistahl-Produktions GmbH & Co. KG
    • Ekkehard Kohler
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...