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F. Joseph Hersick

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  • Zelienople, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Protective helmet
    • Patent number RE45459
    • Issue date Apr 14, 2015
    • MSA Technology, LLC
    • F. Joseph Hersick
    • 002 - Apparel
  • Information Patent Grant

    Protective helmet
    • Patent number 8,539,613
    • Issue date Sep 24, 2013
    • Mine Safety Appliances Company
    • F. Joseph Hersick
    • A42 - HEADWEAR
  • Information Patent Grant

    Protective helmets and method of manufacture thereof
    • Patent number 8,522,418
    • Issue date Sep 3, 2013
    • Mine Safety Appliances Company
    • F. Joseph Hersick
    • A42 - HEADWEAR
  • Information Patent Grant

    Protective helmets and method of manufacture thereof
    • Patent number 8,464,362
    • Issue date Jun 18, 2013
    • Mine Safety Appliances Company
    • F. Joseph Hersick
    • A42 - HEADWEAR
  • Information Patent Grant

    Protective helmet
    • Patent number 8,225,419
    • Issue date Jul 24, 2012
    • Mine Safety Appliances Company
    • F. Joseph Hersick
    • A42 - HEADWEAR
  • Information Patent Grant

    Adjustable headband
    • Patent number 7,296,305
    • Issue date Nov 20, 2007
    • Mine Safety Appliances Company
    • Kevin R. Ketterer
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Communications device for a protective helmet
    • Patent number 7,110,743
    • Issue date Sep 19, 2006
    • Mine Safety Appliances Company
    • Larry Depew
    • A42 - HEADWEAR
  • Information Patent Grant

    Adjustable headband
    • Patent number 7,089,603
    • Issue date Aug 15, 2006
    • Mine Safety Appliances Company
    • Kevin R. Ketterer
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents