Patents by Inventor Stuart G. Fegan

Stuart G. Fegan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Synthesis of zeolitic materials using ion-exchange resin
    Patent number: 4680170
    Abstract: Crystalline zeolites and zeolitic materials are prepared by crystallization from an aqueous mixture comprising a source of silica, optionally a source of alumina, and an ion-exchange resin preferably an anion-exchange resin. In a preferred form of the invention the anion-exchange resin is in the hydroxide form and the reaction mixture also contains a quaternary ammonium compound.
    Type: Grant
    Filed: April 10, 1985
    Date of Patent: July 14, 1987
    Assignee: Imperial Chemical Industries PLC
    Inventors: Barrie M. Lowe, Stuart G. Fegan