TREA

Ian John Fletcher

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  • Rheinfelden, CH
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Patents Grantslast 30 patents

  • Information Patent Grant

    Amphoteric fluorescent whitening agents
    • Patent number 7,566,349
    • Issue date Jul 28, 2009
    • Ciba Specialty Chemicals Corporation
    • Goetz Scheffler
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Amphoteric fluorescent whitening agents
    • Patent number 7,247,174
    • Issue date Jul 24, 2007
    • Ciba Specialty Chemicals Corporation
    • Goetz Scheffler
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents