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Helmut Friedrich

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  • Lippstadt, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Safety contact strip
    • Patent number 12,071,799
    • Issue date Aug 27, 2024
    • ASO GmbH Antriebs- und Steuerungstechnik
    • Helmut Friedrich
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Safety contact strip
    • Patent number 11,078,707
    • Issue date Aug 3, 2021
    • ASO GmbH Antriebs- und Steuerungstechnik
    • Helmut Friedrich
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Safety contact mat
    • Patent number 6,888,081
    • Issue date May 3, 2005
    • ASO GmbH Antriebs-und Steuerungstechnik
    • Helmut Friedrich
    • G08 - SIGNALLING
  • Information Patent Grant

    Safety contact strip
    • Patent number 6,740,826
    • Issue date May 25, 2004
    • ASO GmbH Antriebs-und Stenerungstechnik
    • Helmut Friedrich
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

  • Information Patent Application

    SAFETY CONTACT STRIP
    • Publication number 20210123284
    • Publication date Apr 29, 2021
    • ASO GMBH ANTRIEBS- UND STEUERUNGSTECHNIK
    • HELMUT FRIEDRICH
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    SAFETY CONTACT STRIP
    • Publication number 20200149337
    • Publication date May 14, 2020
    • ASO GMBH ANTRIEBS- UND STEUERUNGSTECHNIK
    • HELMUT FRIEDRICH
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    Safety contact mat
    • Publication number 20040154908
    • Publication date Aug 12, 2004
    • Helmut Friedrich
    • G08 - SIGNALLING