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Nigel P. Schofield

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  • West Sussex, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Scroll pump with fluid recirculation valve
    • Patent number 12,258,963
    • Issue date Mar 25, 2025
    • Edwards Limited
    • Alan Ernest Kinnaird Holbrook
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Adjustable scroll pump
    • Patent number 12,173,707
    • Issue date Dec 24, 2024
    • Edwards Limited
    • Alan Ernest Kinnaird Holbrook
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Axial flow vacuum pump with curved rotor and stator blades
    • Patent number 12,110,896
    • Issue date Oct 8, 2024
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll pump having a biasing apparatus for axially movable fixed an...
    • Patent number 12,049,891
    • Issue date Jul 30, 2024
    • Edwards Limited
    • Alan Ernest Kinnaird Holbrook
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll pump with a plurality of bellows sealing a plurality of adju...
    • Patent number 12,025,128
    • Issue date Jul 2, 2024
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pump
    • Patent number 12,018,691
    • Issue date Jun 25, 2024
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multiple chamber vacuum exhaust system
    • Patent number 11,933,284
    • Issue date Mar 19, 2024
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotor support and vacuum pump with such a rotor support
    • Patent number 11,885,341
    • Issue date Jan 30, 2024
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Pump having liquid blades and an associated method of pumping
    • Patent number 11,719,244
    • Issue date Aug 8, 2023
    • Edwards Limited
    • Ian David Stones
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Pump assembly with sealing protrusion on stator bore portion
    • Patent number 11,421,689
    • Issue date Aug 23, 2022
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Twin shaft pumps and a method of pumping
    • Patent number 11,401,935
    • Issue date Aug 2, 2022
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Drag pump and a set of vacuum pumps including a drag pump
    • Patent number 11,143,191
    • Issue date Oct 12, 2021
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum scroll pump
    • Patent number 10,947,974
    • Issue date Mar 16, 2021
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary screw vacuum pumps
    • Patent number 10,533,552
    • Issue date Jan 14, 2020
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Gas transfer vacuum pump
    • Patent number 10,337,517
    • Issue date Jul 2, 2019
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum exhaust system and channel-switching valve used in this vacu...
    • Patent number 10,309,401
    • Issue date Jun 4, 2019
    • Edwards Limited
    • Nigel Paul Schofield
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Scroll pump
    • Patent number 10,161,399
    • Issue date Dec 25, 2018
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pump rotor for a vacuum pump having a roots pumping mechanism
    • Patent number 9,920,761
    • Issue date Mar 20, 2018
    • Edwards Limited
    • Nigel Paul Schofield
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Pump
    • Patent number 9,869,317
    • Issue date Jan 16, 2018
    • Edwards Limited
    • Nigel Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Side-channel compressor with symmetric rotor disc which pumps in pa...
    • Patent number 9,334,873
    • Issue date May 10, 2016
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multi stage, clam shell vacuum pump
    • Patent number 9,279,426
    • Issue date Mar 8, 2016
    • Edwards Limited
    • Nigel Paul Schofield
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Vacuum pump
    • Patent number 9,249,805
    • Issue date Feb 2, 2016
    • Edwards Limited
    • Ian David Stones
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Regenerative vacuum pump with axial thrust balancing means
    • Patent number 9,127,685
    • Issue date Sep 8, 2015
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pumping arrangement
    • Patent number 9,127,682
    • Issue date Sep 8, 2015
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll pump including drive shaft extending through fixed scroll
    • Patent number 9,097,252
    • Issue date Aug 4, 2015
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Side-channel pump with axial gas bearing
    • Patent number 9,086,071
    • Issue date Jul 21, 2015
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pump
    • Patent number 8,851,865
    • Issue date Oct 7, 2014
    • Edwards Limited
    • Ian David Stones
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pumping arrangement
    • Patent number 8,727,751
    • Issue date May 20, 2014
    • Edwards Limited
    • Nigel Paul Schofield
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Multistage roots vacuum pump having different tip radius and meshin...
    • Patent number 8,702,407
    • Issue date Apr 22, 2014
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pump
    • Patent number 8,672,607
    • Issue date Mar 18, 2014
    • Edwards Limited
    • Ian David Stones
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    VACUUM PUMP WITH REDUCED SEAL REQUIREMENTS
    • Publication number 20250052241
    • Publication date Feb 13, 2025
    • Edwards Limited
    • Cainan Long
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCROLL PUMP
    • Publication number 20240018960
    • Publication date Jan 18, 2024
    • Edwards Limited
    • Alan Ernest Kinnaird Holbrook
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCROLL PUMP
    • Publication number 20230184251
    • Publication date Jun 15, 2023
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    AXIAL FLOW VACUUM PUMP WITH CURVED ROTOR AND STATOR BLADES
    • Publication number 20230109154
    • Publication date Apr 6, 2023
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMP, VACUUM PUMP SET FOR EVACUATING A SEMICONDUCTOR PROCESS...
    • Publication number 20230042886
    • Publication date Feb 9, 2023
    • Edwards Limited
    • Nigel Paul Schofield
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    VACUUM PUMP
    • Publication number 20230024392
    • Publication date Jan 26, 2023
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCROLL PUMP
    • Publication number 20220397115
    • Publication date Dec 15, 2022
    • Edwards Limited
    • Alan Ernest Kinnaird Holbrook
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ADJUSTABLE SCROLL PUMP
    • Publication number 20220299027
    • Publication date Sep 22, 2022
    • Edwards Limited
    • Alan Ernest Kinnaird Holbrook
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    ROTOR SUPPORT AND VACUUM PUMP WITH SUCH A ROTOR SUPPORT
    • Publication number 20220235778
    • Publication date Jul 28, 2022
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCROLL PUMP CRANK SLEEVE
    • Publication number 20220213894
    • Publication date Jul 7, 2022
    • Edwards Limited
    • Alan Ernest Kinnaird Holbrook
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MULTI-STAGE TURBOMOLECULAR PUMP
    • Publication number 20220049705
    • Publication date Feb 17, 2022
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MULTIPLE CHAMBER VACUUM EXHAUST SYSTEM
    • Publication number 20220010788
    • Publication date Jan 13, 2022
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    A PUMP AND A METHOD OF PUMPING A FLUID
    • Publication number 20210172440
    • Publication date Jun 10, 2021
    • Edwards Limited
    • Ian David Stones
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMPING ARRANGEMENT
    • Publication number 20200355190
    • Publication date Nov 12, 2020
    • Edwards Limited
    • Christopher Mark Bailey
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    TURBOMOLECULAR PUMP AND METHOD AND APPARATUS FOR CONTROLLING THE PR...
    • Publication number 20200347851
    • Publication date Nov 5, 2020
    • Edwards Limited
    • James Alexander HAYLOCK
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    A DRAG PUMP AND A SET OF VACUUM PUMPS INCLUDING A DRAG PUMP
    • Publication number 20200271118
    • Publication date Aug 27, 2020
    • Edwards Limited
    • Nigel Paul Schofield
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    TWIN SHAFT PUMPS AND A METHOD OF PUMPING
    • Publication number 20200102958
    • Publication date Apr 2, 2020
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMP SEALING
    • Publication number 20190368489
    • Publication date Dec 5, 2019
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MULTI-STAGE VACUUM BOOSTER PUMP COUPLING
    • Publication number 20190368354
    • Publication date Dec 5, 2019
    • Edwards Limited
    • Michael Henry North
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM SCROLL PUMP
    • Publication number 20190309748
    • Publication date Oct 10, 2019
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    LUBRICATION OF GEARS IN TWIN-SHAFT PUMPS
    • Publication number 20180328410
    • Publication date Nov 15, 2018
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY SCREW VACUUM PUMPS
    • Publication number 20180023566
    • Publication date Jan 25, 2018
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM EXHAUST SYSTEM AND CHANNEL-SWITCHING VALVE USED IN THIS VACU...
    • Publication number 20180003178
    • Publication date Jan 4, 2018
    • Edwards Limited
    • Nigel Paul Schofield
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    IMPROVEMENTS IN OR RELATING TO VACUUM PUMPING ARRANGEMENT
    • Publication number 20170350395
    • Publication date Dec 7, 2017
    • Edwards Limited
    • Nigel Paul SCHOFIELD
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    KINETIC ENERGY RECOVERY SYSTEM
    • Publication number 20160369807
    • Publication date Dec 22, 2016
    • EDWARDS LIMITED
    • NIGEL PAUL SCHOFIELD
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    KINETIC ENERGY RECOVERY SYSTEM
    • Publication number 20160369783
    • Publication date Dec 22, 2016
    • EDWARDS LIMITED
    • NIGEL PAUL SCHOFIELD
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    VEHICLE
    • Publication number 20160369806
    • Publication date Dec 22, 2016
    • EDWARDS LIMITED
    • NIGEL PAUL SCHOFIELD
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    ROTOR FOR PUMP
    • Publication number 20160097390
    • Publication date Apr 7, 2016
    • EDWARDS LIMITED
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMP
    • Publication number 20150377239
    • Publication date Dec 31, 2015
    • EDWARDS LIMITED
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCROLL PUMP
    • Publication number 20150176584
    • Publication date Jun 25, 2015
    • Edwards Limited
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...