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Roger William Phelps

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  • Kings Langley, AU
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Patents Grantslast 30 patents

  • Information Patent Grant

    Membrane cleaning with pulsed airlift pump
    • Patent number 10,507,431
    • Issue date Dec 17, 2019
    • Fufang Zha
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Gas scouring apparatus for immersed membranes
    • Patent number 9,815,027
    • Issue date Nov 14, 2017
    • Evoqua Water Technologies LLC
    • Roger Phelps
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Gas sparging device
    • Patent number D785197
    • Issue date Apr 25, 2017
    • Evoqua Water Technologies LLC
    • Roger Phelps
    • D24 - Medical and laboratory equipment
  • Information Patent Grant

    Membrane cleaning with pulsed airlift pump
    • Patent number 9,573,824
    • Issue date Feb 21, 2017
    • Evoqua Water Technologies LLC
    • Fufang Zha
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Membrane cleaning with pulsed airlift pump
    • Patent number 9,206,057
    • Issue date Dec 8, 2015
    • Evoqua Water Technologies LLC
    • Fufang Zha
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Water treatment membrane cleaning with pulsed airlift pump
    • Patent number 8,840,783
    • Issue date Sep 23, 2014
    • Evoqua Water Technologies LLC
    • Fufang Zha
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Membrane cleaning with pulsed airlift pump
    • Patent number 8,622,222
    • Issue date Jan 7, 2014
    • Siemens Water Technologies LLC
    • Fufang Zha
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Continuously variable aeration
    • Patent number 8,377,305
    • Issue date Feb 19, 2013
    • Siemens Industry, Inc.
    • Fufang Zha
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Mixing chamber
    • Patent number 8,372,282
    • Issue date Feb 12, 2013
    • Siemens Industry, Inc.
    • Fufang Zha
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Membrane cleaning with pulsed airlift pump
    • Patent number 8,372,276
    • Issue date Feb 12, 2013
    • Siemens Industry, Inc.
    • Fufang Zha
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Membrane cleaning with pulsed airlift pump
    • Patent number 8,287,743
    • Issue date Oct 16, 2012
    • Siemens Industry, Inc.
    • Fufang Zha
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Airlift pump
    • Patent number D637208
    • Issue date May 3, 2011
    • Siemens Water Technologies Corp.
    • Peter Zauner
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Square membrane manifold system
    • Patent number 7,862,719
    • Issue date Jan 4, 2011
    • Siemens Water Technologies Corp.
    • Robert James McMahon
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

  • Information Patent Application

    MEMBRANE CLEANING WITH PULSED AIRLIFT PUMP
    • Publication number 20200078741
    • Publication date Mar 12, 2020
    • Evoqua Water Technologies LLC
    • Fufang Zha
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    MEMBRANE CLEANING WITH PULSED AIRLIFT PUMP
    • Publication number 20170113188
    • Publication date Apr 27, 2017
    • EVOQUA WATER TECHNOLOGIES LLC
    • Fufang Zha
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Gas Scouring Apparatus for Immersed Membranes
    • Publication number 20150265973
    • Publication date Sep 24, 2015
    • Roger Phelps
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    MEMBRANE CLEANING WITH PULSED AIRLIFT PUMP
    • Publication number 20140158618
    • Publication date Jun 12, 2014
    • Fufang Zha
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    MEMBRANE CLEANING WITH PULSED AIRLIFT PUMP
    • Publication number 20140083940
    • Publication date Mar 27, 2014
    • SIEMENS WATER TECHNOLOGIES LLC
    • Fufang Zha
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    MEMBRANE CLEANING WITH PULSED AIRLIFT PUMP
    • Publication number 20130153496
    • Publication date Jun 20, 2013
    • Siemens Industry, Inc.
    • Fufang Zha
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    MEMBRANE CLEANING WITH PULSED GAS SLUGS
    • Publication number 20120285885
    • Publication date Nov 15, 2012
    • Siemens Industry, Inc.
    • Gerin James
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    MEMBRANE CLEANING WITH PULSED AIRLIFT PUMP
    • Publication number 20120061333
    • Publication date Mar 15, 2012
    • Siemens Industry, Inc.
    • Fufang Zha
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    MEMBRANE CLEANING WITH PULSED AIRLIFT PUMP
    • Publication number 20110198283
    • Publication date Aug 18, 2011
    • Fufang Zha
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    MEMBRANE CLEANING WITH PULSED ARILIFT PUMP
    • Publication number 20110100907
    • Publication date May 5, 2011
    • SIEMENS WATER TECHNOLOGIES CORP.
    • Fufang Zha
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Operating Strategies in Filtration Processes
    • Publication number 20090001018
    • Publication date Jan 1, 2009
    • Fufang Zha
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Square Mbr Manifold System
    • Publication number 20080210623
    • Publication date Sep 4, 2008
    • Robert James McMahon
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Continuously Variable Aeration
    • Publication number 20080156745
    • Publication date Jul 3, 2008
    • U.S. Filter Wastewater Group, Inc.
    • Fufang Zha
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Mixing chamber
    • Publication number 20070007214
    • Publication date Jan 11, 2007
    • Fufang Zha
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL