TREA

Richard James Ballard

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  • Beaverton, OR, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    R-wave detector
    • Patent number 4,000,461
    • Issue date Dec 28, 1976
    • Textronix, Inc.
    • Ronald Charles Barber
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Amplifier circuit having a floating input stage
    • Patent number 3,988,690
    • Issue date Oct 26, 1976
    • Tektronix, Inc.
    • Gary Charles Vance
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE