Patents by Inventor Michael Darbyshire

Michael Darbyshire 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).

  • Solvent extraction
    Patent number: 5834316
    Abstract: A method of extracting anionic species from a solid or liquid medium by contacting the medium with an extract solvent of supercritical carbon dioxide and a positively charged complexant ligand for solubilizing and extracting the anionic species form the medium.
    Type: Grant
    Filed: April 25, 1996
    Date of Patent: November 10, 1998
    Assignee: British Nuclear Fuels plc
    Inventors: Neil Graham Smart, Robert George Godfrey Holmes, Nigel Dennis Tinker, Michael Darbyshire