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Thomas J. Landis

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  • New Albany, IN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Power of observation invisible ink game
    • Patent number 5,217,231
    • Issue date Jun 8, 1993
    • Stry-Lenkoff Co.
    • Thomas J. Landis
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Mix and match invisible ink game
    • Patent number 5,160,266
    • Issue date Nov 3, 1992
    • Stry-Lenkoff Company
    • Thomas J. Landis
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS