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John Chapman

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  • Gray, TN, US
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    RADIATION SHIELDING COMPOSITE MATERIAL
    • Publication number 20240071638
    • Publication date Feb 29, 2024
    • John Eric Chapman
    • G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
  • Information Patent Application

    Retractable Animal Leash
    • Publication number 20220159931
    • Publication date May 26, 2022
    • John Eric Chapman
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Application

    Hybrid Washer and Method of Manufacture
    • Publication number 20210340661
    • Publication date Nov 4, 2021
    • John Eric Chapman
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Application

    Hybrid Washer
    • Publication number 20210262515
    • Publication date Aug 26, 2021
    • John Eric Chapman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PRESSURE ASSISTED ROTARY PINCH VALVE
    • Publication number 20200011435
    • Publication date Jan 9, 2020
    • John Eric Chapman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Pressure Assisted Rotary Pinch Valve
    • Publication number 20180172166
    • Publication date Jun 21, 2018
    • John Chapman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...