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Roy E. Riihimaki

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  • Libertyville, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sterilization cassette
    • Patent number D360697
    • Issue date Jul 25, 1995
    • Hu-Friedy Mfg. Co., Inc.
    • Roy E. Riihimaki
    • D24 - Medical and laboratory equipment
  • Information Patent Grant

    Sterilization and storage cassette
    • Patent number 5,433,929
    • Issue date Jul 18, 1995
    • Hu-Friedy Mfg. Co., Inc.
    • Roy E. Riihimaki
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Sterilization and storage cassette
    • Patent number 5,294,413
    • Issue date Mar 15, 1994
    • Hu-Friedy Mfg. Co., Inc.
    • Roy E. Riihimaki
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Two-tiered sterilization and storage cassette
    • Patent number 5,284,632
    • Issue date Feb 8, 1994
    • Hu-Friedy Mfg. Co., Inc.
    • James M. Kudla
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Dental prosthesis placement instrument
    • Patent number 5,256,064
    • Issue date Oct 26, 1993
    • Hu-Friedy Mfg. Co., Inc.
    • Roy E. Riihimaki
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Two-tiered sterilization and storage cassette
    • Patent number 5,215,726
    • Issue date Jun 1, 1993
    • Hu-Friedy Mfg. Co., Inc.
    • James M. Kudla
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Dental instrument
    • Patent number 5,161,971
    • Issue date Nov 10, 1992
    • Hu-Friedy Mfg. Co., Inc.
    • Karen L. Neiner
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Instrument cassette
    • Patent number 4,854,475
    • Issue date Aug 8, 1989
    • Hu-Friedy Manufacturing Co., Inc.
    • Roy Riihimaki
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE