TREA

Richard N. Knowles

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  • Hockessin, DE, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Chemical fire alarm
    • Patent number 4,015,015
    • Issue date Mar 29, 1977
    • E. I. Du Pont de Nemours and Company
    • Richard Norris Knowles
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Preparation of salts of antimony (V) esters
    • Patent number 3,944,586
    • Issue date Mar 16, 1976
    • Richard Norris Knowles
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Process for preparing higher purity azo compounds
    • Patent number 3,937,696
    • Issue date Feb 10, 1976
    • E. I. Du Pont de Nemours & Co.
    • Richard N. Knowles
    • C07 - ORGANIC CHEMISTRY