TREA

Ralph E. Aldrich

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  • Acton, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Mixtures of nematic liquid crystal materials
    • Patent number 4,147,656
    • Issue date Apr 3, 1979
    • Itek Corporation
    • Ralph E. Aldrich
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Mixtures of nematic liquid crystal materials
    • Patent number 4,090,975
    • Issue date May 23, 1978
    • Itek Corporation
    • Ralph E. Aldrich
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...