TREA

Debra K. Johnson

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  • Andover, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fiber optic sensor
    • Patent number 5,900,215
    • Issue date May 4, 1999
    • Optical Sensors Incorporated
    • Kevin R. Seifert
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Method for manufacturing fiber optic sensors
    • Patent number 5,656,241
    • Issue date Aug 12, 1997
    • Optical Sensors Incorporated
    • Kevin R. Seifert
    • G01 - MEASURING TESTING