Stephen D. Helm

Person

  • Blackburn, GB

Patents Grantslast 30 patents

  • Information Patent Grant

    Valve for pressurized metered dose dispenser

    • Patent number 10,272,214
    • Issue date Apr 30, 2019
    • 3M Innovative Properties Company
    • Andrew D Child
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Metered dose valve

    • Patent number 8,814,009
    • Issue date Aug 26, 2014
    • 3M Innovative Properties Company
    • Peter D. Hodson
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

  • Information Patent Application

    VALVE FOR PRESSURIZED METERED DOSE DISPENSER

    • Publication number 20160121059
    • Publication date May 5, 2016
    • 3M Innovative Properties Company
    • Andrew D. Child
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE