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David C. Byram

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  • St. Paul, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Convenient “drop-down” respirator
    • Patent number 6,715,490
    • Issue date Apr 6, 2004
    • 3M Innovative Properties Company
    • David C. Byram
    • A62 - LIFE-SAVING FIRE-FIGHTING
  • Information Patent Grant

    Convenient “drop-down” respirator
    • Patent number 6,591,837
    • Issue date Jul 15, 2003
    • 3M Innovative Properties Company
    • David C. Byram
    • A62 - LIFE-SAVING FIRE-FIGHTING
  • Information Patent Grant

    Drop-down face mask assembly
    • Patent number 6,457,473
    • Issue date Oct 1, 2002
    • 3M Innovative Properties Company
    • Gerald M. Brostrom
    • A41 - WEARING APPAREL
  • Information Patent Grant

    Convenient "drop-down" respirator
    • Patent number 6,119,692
    • Issue date Sep 19, 2000
    • Minnesota Mining and Manufacturing Company
    • David C. Byram
    • A62 - LIFE-SAVING FIRE-FIGHTING
  • Information Patent Grant

    Full-face respirator lens
    • Patent number D426298
    • Issue date Jun 6, 2000
    • 3M Innovative Properties Company
    • Vaughn B. Grannis
    • D24 - Medical and laboratory equipment
  • Information Patent Grant

    Drop-down face mask assembly
    • Patent number 6,062,221
    • Issue date May 16, 2000
    • 3M Innovative Properties Company
    • Gerald M. Brostrom
    • A41 - WEARING APPAREL
  • Information Patent Grant

    Carriage for drop-down mask assembly
    • Patent number D421801
    • Issue date Mar 21, 2000
    • 3M Innovative Properties Company
    • Gerald M. Brostrom
    • D24 - Medical and laboratory equipment
  • Information Patent Grant

    Carriage for drop-down mask assembly
    • Patent number D421299
    • Issue date Feb 29, 2000
    • 3M Innovative Properties Company
    • Gerald M. Brostrom
    • D24 - Medical and laboratory equipment
  • Information Patent Grant

    Full face respirator lens
    • Patent number D409744
    • Issue date May 11, 1999
    • Minnesota Mining and Manufacturing Company
    • Vaughn B. Grannis
    • D24 - Medical and laboratory equipment
  • Information Patent Grant

    Full face respirator lens
    • Patent number D388872
    • Issue date Jan 6, 1998
    • Minnesota Mining and Manufacturing Company
    • Vaughn B. Grannis
    • D24 - Medical and laboratory equipment
  • Information Patent Grant

    Full face respirator
    • Patent number D378610
    • Issue date Mar 25, 1997
    • Minnesota Mining and Manufacturing Company
    • Joseph G. Reischel
    • D24 - Medical and laboratory equipment
  • Information Patent Grant

    Molded head harness
    • Patent number 5,481,763
    • Issue date Jan 9, 1996
    • Minnesota Mining and Manufacturing Company
    • Gerald M. Brostrom
    • A62 - LIFE-SAVING FIRE-FIGHTING
  • Information Patent Grant

    Convenient "drop-down" respirator harness structure and method of use
    • Patent number 5,464,010
    • Issue date Nov 7, 1995
    • Minnesota Mining and Manufacturing Company
    • David C. Byram
    • A62 - LIFE-SAVING FIRE-FIGHTING
  • Information Patent Grant

    Orthopedic brace having width adjusting vamp
    • Patent number 5,425,701
    • Issue date Jun 20, 1995
    • Minnesota Mining and Manufacturing Company
    • Craig D. Oster
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Molded head harness
    • Patent number 5,394,568
    • Issue date Mar 7, 1995
    • Minnesota Mining and Manufacturing Company
    • Gerald M. Brostrom
    • A62 - LIFE-SAVING FIRE-FIGHTING
  • Information Patent Grant

    Individual bandage dispenser
    • Patent number 5,271,522
    • Issue date Dec 21, 1993
    • Minnesota Mining and Manufacturing Company
    • Su-sen Ko
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Aerosol device
    • Patent number 4,834,083
    • Issue date May 30, 1989
    • Minnesota Mining and Manufacturing Company
    • David C. Byram
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

  • Information Patent Application

    Convenient "drop-down" respirator
    • Publication number 20030178026
    • Publication date Sep 25, 2003
    • David C. Byram
    • A62 - LIFE-SAVING FIRE-FIGHTING
  • Information Patent Application

    Drop-down face mask assembly
    • Publication number 20020088466
    • Publication date Jul 11, 2002
    • 3M Innovative Properties Company
    • Gerald M. Brostrom
    • A62 - LIFE-SAVING FIRE-FIGHTING