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Licong DUAN

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  • Charlotte, NC, US
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Patents Applicationslast 30 patents

  • Information Patent Application

    METHODS, APPARATUSES, AND SYSTEMS FOR EVALUATING RESPIRATORY PROTEC...
    • Publication number 20230405374
    • Publication date Dec 21, 2023
    • Honeywell International Inc.
    • Xiaojin HAN
    • A62 - LIFE-SAVING FIRE-FIGHTING
  • Information Patent Application

    RESPIRATOR
    • Publication number 20220249878
    • Publication date Aug 11, 2022
    • Honeywell International Inc.
    • Xiaojin HAN
    • A62 - LIFE-SAVING FIRE-FIGHTING
  • Information Patent Application

    RESPIRATOR
    • Publication number 20220249883
    • Publication date Aug 11, 2022
    • Honeywell International Inc.
    • Xiaojin HAN
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL