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George Griffiths

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  • Skelmersdale, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electrostatic air filter
    • Patent number 12,083,538
    • Issue date Sep 10, 2024
    • Darwin Technology International Limited
    • Geoffrey Norman Walter Gay
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Grant

    Air cleaning device and apparatus
    • Patent number 10,286,405
    • Issue date May 14, 2019
    • Darwin Technology International Limited
    • George Griffiths
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Grant

    Device for air cleaning
    • Patent number 7,655,076
    • Issue date Feb 2, 2010
    • Darwin Technology International Limited
    • George Griffiths
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Grant

    Air cleaning device
    • Patent number 7,014,688
    • Issue date Mar 21, 2006
    • Darwin Technology Limited
    • George Griffiths
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Grant

    Air cleaning device
    • Patent number 6,749,669
    • Issue date Jun 15, 2004
    • Darwin Technology Limited
    • George Griffiths
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTROSTATIC AIR FILTER
    • Publication number 20240390916
    • Publication date Nov 28, 2024
    • Darwin Technology International Limited
    • Geoffrey Norman Walter GAY
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Application

    ELECTROSTATIC AIR FILTER
    • Publication number 20220219177
    • Publication date Jul 14, 2022
    • Darwin Technology International Limited
    • Geoffrey Norman Walter GAY
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Application

    AIR CLEANING DEVICE AND APPARATUS
    • Publication number 20170113229
    • Publication date Apr 27, 2017
    • Darwin Technology International Limited
    • George Griffiths
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Application

    AIR CLEANING FILTER
    • Publication number 20130067877
    • Publication date Mar 21, 2013
    • George Griffiths
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Volatile Substance Filter
    • Publication number 20090031899
    • Publication date Feb 5, 2009
    • VALERION 2 LIMITED
    • Geoffrey Norman Walter Gay
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Device For Air Cleaning
    • Publication number 20080034973
    • Publication date Feb 14, 2008
    • DARWIN TECHNOLOGY LIMITED
    • George Griffiths
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Application

    Air cleaning device
    • Publication number 20040226448
    • Publication date Nov 18, 2004
    • Darwin Technology Limited
    • George Griffiths
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC