Patents by Inventor Neil Aubrey Caplan

Neil Aubrey Caplan 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).

  • Catalysts
    Patent number: 7262299
    Abstract: A process for performing a catalytic Diels-Alder reaction by reacting a diene with a dienophile in the presence of a heterogeneous catalyst comprising a zeolitic material exchanged or impregnated with ions of a Lewis acidic metal is described. The catalyst, for example, copper-exchanged zeolite Y, may be treated with chiral bis(imine) compounds to direct the chirality of the reaction products. The catalyst can be separated from the reaction mixture and re-used in further Diels Alder reactions.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: August 28, 2007
    Assignee: Johnson Matthey PLC
    Inventors: Neil Aubrey Caplan, Frederick Ernest Hancock
  • Catalysts
    Patent number: 7074960
    Abstract: A zeolite-immobilized Lewis acid e.g. copper catalyst for performing carbonyl-ene and iminoene reactions is described. The catalyst can readily be separated from the reaction mixture and re-used in further reactions with minimal reduction in activity.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: July 11, 2006
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Frederick Ernest Hancock, Graham John Hutchings, Neil Aubrey Caplan
  • Catalysts
    Publication number: 20040204610
    Abstract: A zeolite-immobilised Lewis acid e.g. copper catalyst for performing carbonyl-ene and iminoene reactions is described. The catalyst can readily be separated from the reaction mixture and re-used in further reactions with minimal reduction in activity.
    Type: Application
    Filed: May 26, 2004
    Publication date: October 14, 2004
    Inventors: Frederick Ernest Hancock, Graham John Hutchings, Neil Aubrey Caplan