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Friedhelm Krüger

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  • Lemgo, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Quartz sleeve support for a UV-lamp
    • Patent number 10,974,974
    • Issue date Apr 13, 2021
    • XYLEM IP MANAGEMENT S.à r.l.
    • Friedhelm Krüger
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Damping ring
    • Patent number 10,366,875
    • Issue date Jul 30, 2019
    • XYLEM IP MANAGEMENT S.à r.l.
    • Friedhelm Krüger
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Method for determining the UV transmittance of water
    • Patent number 10,254,221
    • Issue date Apr 9, 2019
    • XYLEM IP MANAGEMENT S.à r.l.
    • Friedhelm Krüger
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    UV sensor
    • Patent number 10,221,081
    • Issue date Mar 5, 2019
    • XYLEM IP MANAGEMENT S.ÀR.L.
    • Friedhelm Krüger
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    UV lamp module with exchangeable lamp units
    • Patent number 9,682,873
    • Issue date Jun 20, 2017
    • XYLEM IP HOLDINGS LLC
    • Friedhelm Krüger
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    UV water treatment plant with open channel
    • Patent number 9,126,851
    • Issue date Sep 8, 2015
    • Xylem Water Solutions Herford GmbH
    • Leroy Jack Morningstar
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    In-line UV-germicidal device for fluid media
    • Patent number 9,073,768
    • Issue date Jul 7, 2015
    • Xylem IP Holdings LLC
    • Rolf Sief
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    UV disinfection system for waste water and drinking water including...
    • Patent number 8,692,209
    • Issue date Apr 8, 2014
    • Xylem IP Holdings, LLC
    • Friedhelm Krüger
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Device for treating a flowing fluid
    • Patent number 7,592,607
    • Issue date Sep 22, 2009
    • Wedeco AG
    • Rolf Sief
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

  • Information Patent Application

    QUARTZ SLEEVE SUPPORT FOR A UV-LAMP
    • Publication number 20200156962
    • Publication date May 21, 2020
    • XYLEM IP MANAGEMENT S.à r.l.
    • Friedhelm Krüger
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Application

    DAMPING RING
    • Publication number 20190019665
    • Publication date Jan 17, 2019
    • XYLEM IP MANAGEMENT S.à r.l.
    • Friedhelm Krüger
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    UV SENSOR
    • Publication number 20180141830
    • Publication date May 24, 2018
    • XYLEM IP MANAGEMENT S.à r.l.
    • Friedhelm KRÜGER
    • G01 - MEASURING TESTING
  • Information Patent Application

    METHOD FOR DETERMINING THE UV TRANSMITTANCE OF WATER
    • Publication number 20180011019
    • Publication date Jan 11, 2018
    • XYLEM IP MANAGEMENT S.a.r.l.
    • Friedhelm KRÜGER
    • G01 - MEASURING TESTING
  • Information Patent Application

    UV LAMP MODULE WITH EXCHANGEABLE LAMP UNITS
    • Publication number 20160052801
    • Publication date Feb 25, 2016
    • XYLEM IP HOLDINGS LLC
    • Friedhelm KRÜGER
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Application

    UV WATER TREATMENT PLANT WITH OPEN CHANNEL
    • Publication number 20150108372
    • Publication date Apr 23, 2015
    • Leory Jack Morningstar
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Application

    UV DISINFECTION SYSTEM WITH CONTACTLESS CLEANING
    • Publication number 20120216843
    • Publication date Aug 30, 2012
    • XYLEM IP HOLDINGS LLC
    • Friedhelm Krüger
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Application

    UV DISINFECTION SYSTEM FOR WASTE WATER AND DRINKING WATER INCLUDING...
    • Publication number 20120217420
    • Publication date Aug 30, 2012
    • XYLEM IP HOLDINGS LLC
    • Friedhelm Krüger
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Application

    UV REACTOR FOR CHEMICAL REACTIONS AND USE THEREOF
    • Publication number 20110237842
    • Publication date Sep 29, 2011
    • ITT Manufacturing Enterprises, Inc.
    • Ernst Martin Billing
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    IN-LINE UV-GERMICIDAL DEVICE FOR FLUID MEDIA
    • Publication number 20110076188
    • Publication date Mar 31, 2011
    • Wedeco AG
    • Rolf Sief
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Device for treating a flowing fluid
    • Publication number 20070290144
    • Publication date Dec 20, 2007
    • Rolf Sief
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL