TREA

Gerhold Muhmel

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  • Hamberge, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Scent cartridge
    • Patent number 6,135,431
    • Issue date Oct 24, 2000
    • Drager Sicherheitstechnik GmbH
    • Gerhold Muhmel
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Layered gas filter media
    • Patent number 6,024,782
    • Issue date Feb 15, 2000
    • Dragerwerk AG
    • Andre Freund
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Respirator with inner half mask and pollutant indicator
    • Patent number 5,297,544
    • Issue date Mar 29, 1994
    • Dragerwerk AG
    • Wolfgang May
    • A62 - LIFE-SAVING FIRE-FIGHTING