TREA

Lewis Erwin

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  • Winnetka, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cryogenic fluid level sensor
    • Patent number 5,114,907
    • Issue date May 19, 1992
    • Illinois Superconductor Corporation
    • Lewis Erwin
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Method of manufacture preforms
    • Patent number 4,758,398
    • Issue date Jul 19, 1988
    • The Dexter Corporation
    • John J. Sparapany
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL