Patents by Inventor Stephen David Cook

Stephen David Cook 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).

  • Dual use hydrocarbon fuel composition
    Patent number: 7533700
    Abstract: A hydrocarbon fuel composition which is suitable for sue in a fuel cell apparatus and an internal combustion engine comprises at least one saturated aliphatic hydrocarbon having 4 to 12 carbon atoms, and is characterised by an olefin content of less than 20% by volume, an aromatics content of less than 42% by volume, a final boiling point (fop) of less than 215° C., and a sulphur content of less than 20 ppm.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: May 19, 2009
    Assignee: BP Oil International Limited
    Inventors: Graham Butler, Stephen David Cook, Michael Graham Hodges, Graham Walter Ketley, Gregory James Lang
  • Method and apparatus for the preparation of triptane and/or triptene
    Publication number: 20040133055
    Abstract: A continuous or semi-continuous process for the production of triptane and/or triptene from methanol and/or dimethyl ether in the presence in a reactor of an effective concentration of catalyst active for the conversion of methanol and/or dimethyl ether to triptane and/or triptene in which process co-produced water is separated from the catalyst as a vapour phase whilst the catalyst is retained in a liquid or solid phase. Preferably, the catalyst comprises zinc halide and is maintained in said reactor in an active form and an effective concentration. Apparatus for use in the process may comprise a reactor having at least one reaction zone and at least one separation zone.
    Type: Application
    Filed: February 11, 2004
    Publication date: July 8, 2004
    Inventors: Stephen David Cook, Jeremy Bernard Cooper, Peter John Elstner, Richard Daniel Kay, Alan Laughton, George Ernest Morris, Stephen James Smith, John Glen Sunley
  • Dual use hydrocarbon fuel composition
    Publication number: 20030162060
    Abstract: A hydrocarbon fuel composition which is suitable for sue in a fuel cell apparatus and an internal combustion engine comprises at least one saturated aliphatic hydrocarbon having 4 to 12 carbon atoms, and is characterised by . an olefin content of less than 20%, by volume, an aromatics content of less than 42% by volume, a final boiling point (fop) of less than 215° C., and a sulphur content of less than 20 ppm.
    Type: Application
    Filed: March 19, 2003
    Publication date: August 28, 2003
    Inventors: Graham Butler, Stephen David Cook, Michael Graham Hodges, Graham Walter Ketley, Gregory James Lang