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  • UXBRIDGE, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    One-way valve
    • Patent number 11,142,384
    • Issue date Oct 12, 2021
    • O2I
    • Robert Buckingham
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Regulating apparatus for a pressure activated one-way valve
    • Patent number 9,657,856
    • Issue date May 23, 2017
    • O2i Ltd
    • Robert Buckingham
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents

  • Information Patent Application

    ONE-WAY VALVE
    • Publication number 20190177069
    • Publication date Jun 13, 2019
    • O2I LTD.
    • Robert Buckingham
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    REGULATING APPARATUS FOR A PRESSURE ACTIVATED ONE-WAY VALVE
    • Publication number 20150316161
    • Publication date Nov 5, 2015
    • O2I LTD.
    • Robert Buckingham
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL