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David J. Greenleaf

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  • Leicestershire, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dose counter for dispensers
    • Patent number 8,740,014
    • Issue date Jun 3, 2014
    • 3M Innovative Properties Company
    • Graham R. Purkins
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Metering valve for a metered dose inhaler providing consistent deli...
    • Patent number 7,234,460
    • Issue date Jun 26, 2007
    • 3M Innovative Properties Company
    • David J. Greenleaf
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Valve stem for use in a metering valve of a metered dose inhaler
    • Patent number 6,863,195
    • Issue date Mar 8, 2005
    • 3M Innovative Properties Company
    • Andrew M. Bryant
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    CRC-free medicinal aerosol formulations of 1,1,1,2-tetrafluoroethan...
    • Patent number 6,352,684
    • Issue date Mar 5, 2002
    • Riker Laboratories Inc.
    • Tarlochan S. Purewal
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Medicinal aerosol formulations
    • Patent number 5,776,434
    • Issue date Jul 7, 1998
    • Riker Laboratories, Inc.
    • Tarlochan S. Purewal
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Medicinal aerosol formulations
    • Patent number 5,766,573
    • Issue date Jun 16, 1998
    • Riker Laboratories, Inc.
    • Tarlochan S. Purewal
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Medicinal aerosol formulations
    • Patent number 5,720,940
    • Issue date Feb 24, 1998
    • Riker Laboratories, Inc.
    • Tarlochan S. Purewal
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Medicinal aerosol formulations
    • Patent number 5,695,743
    • Issue date Dec 9, 1997
    • Riker Laboratories, Inc.
    • Tarlochan S. Purewal
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Medicinal aerosol formulations
    • Patent number 5,683,677
    • Issue date Nov 4, 1997
    • Riker Laboratories, Inc.
    • Tarlochan S. Purewal
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Medicinal aerosol formulations
    • Patent number 5,681,545
    • Issue date Oct 28, 1997
    • Riker Laboratories, Inc.
    • Tarlochan S. Purewal
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Medicinal aerosol formulations
    • Patent number 5,674,473
    • Issue date Oct 7, 1997
    • Riker Laboratories, Inc.
    • Tarlochan S. Purewal
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Medicinal aerosol formulations
    • Patent number 5,605,674
    • Issue date Feb 25, 1997
    • Riker Laboratories, Inc.
    • Tarlochan S. Purewal
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Inhaler
    • Patent number 5,515,841
    • Issue date May 14, 1996
    • Minnesota Mining and Manufacturing Company
    • Paul A. Robertson
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Medicinal aerosol formulations
    • Patent number 5,439,670
    • Issue date Aug 8, 1995
    • Riker Laboratories, Inc.
    • Tarlochan S. Purewal
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Deagglomerators for dry powder inhalers
    • Patent number 5,437,271
    • Issue date Aug 1, 1995
    • Minnesota Mining and Manufacturing Company
    • Peter D. Hodson
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Aerosol valve with a surfactant impregnated valve seal
    • Patent number 5,427,282
    • Issue date Jun 27, 1995
    • Minnesota Mining and Manufacturing Company
    • David J. Greenleaf
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Method for preparing medicinal aerosol formulation containing coate...
    • Patent number 5,348,730
    • Issue date Sep 20, 1994
    • Minnesota Mining and Manufacturing Company
    • David J. Greenleaf
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Medicinal aerosol formulations
    • Patent number 5,225,183
    • Issue date Jul 6, 1993
    • Riker Laboratories, Inc.
    • Tarlochan S. Purewal
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

  • Information Patent Application

    Metered Dose Dispensing Valve
    • Publication number 20150136122
    • Publication date May 21, 2015
    • 3M Innovative Properties Company
    • Adam J. Stuart
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    INHALERS
    • Publication number 20120199121
    • Publication date Aug 9, 2012
    • Cambridge Consultants Limited
    • Rachel Striebig
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Dose Counter for Dispensers
    • Publication number 20070246042
    • Publication date Oct 25, 2007
    • 3M Innovative Properties Company
    • Graham R. Purkins
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Metering valve for a metered dose inhaler providing consistent deli...
    • Publication number 20040139965
    • Publication date Jul 22, 2004
    • 3M Innovative Properties Company
    • David J. Greenleaf
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Valve stem for use in a metering valve of a metered dose inhaler
    • Publication number 20030127464
    • Publication date Jul 10, 2003
    • Andrew M. Bryant
    • G01 - MEASURING TESTING