Patents by Inventor Iain Stewart Denniss

Iain Stewart Denniss 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).

  • Nuclear fuel reprocessing
    Patent number: 6093375
    Abstract: A spent fuel reprocessing method includes at least the formation of an aqueous solution and at least one solvent extraction step. Formohydroxarmic acid is used to reduce any Np(VI) to Np(V) and/or to form a complex with Np(IV). As a result, substantially all the neptunium present is retained in the aqueous phase during solvent extraction.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: July 25, 2000
    Assignee: British Nuclear Fuels PLC
    Inventors: Robin John Taylor, Iain Stewart Denniss, Andrew Lindsay Wallwork