TREA

Jefferson S. Mendenhall

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  • Volant, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Safety helmet
    • Patent number 12,011,057
    • Issue date Jun 18, 2024
    • MSA Technology, LLC
    • Celeste L. Hort
    • A42 - HEADWEAR

Patents Applicationslast 30 patents

  • Information Patent Application

    Safety Helmet
    • Publication number 20240292922
    • Publication date Sep 5, 2024
    • MSA TECHNOLOGY, LLC
    • Celeste L. Hort
    • A42 - HEADWEAR
  • Information Patent Application

    SAFETY HELMET
    • Publication number 20210212406
    • Publication date Jul 15, 2021
    • MSA Technology, LLC
    • Celeste L. Hort
    • A42 - HEADWEAR
  • Information Patent Application

    Respirator Mask and Filter Unit Therefore
    • Publication number 20140261437
    • Publication date Sep 18, 2014
    • Mine Safety Appliances Company
    • Martin S. Catanzarite
    • A62 - LIFE-SAVING FIRE-FIGHTING