Patents Assigned to Cranfield Biotechnology Ltd.
  • Electrochemical oxygen sensor
    Patent number: 5876577
    Abstract: An electrochemical oxygen sensor comprises an impermeable substrate and a plurality of conductive layers applied thereto by thick film deposition. At least one conductive layer comprises an electrode and a conductor connected to the electrode. The electrode may have a covering layer of an ion exchange polymer.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: March 2, 1999
    Assignee: Cranfield Biotechnology Ltd.
    Inventors: Jerry McAleer, Martin Ackland
  • Electrochemical metal analysis
    Patent number: 5672257
    Abstract: Electrochemical heavy metal analysis includes a printed electrode having a layer of a mercury compound or salt supported thereon. The compound or salt is reduced to metallic mercury in use of the electrode. The mercury layer may comprise a layer of hydroxyethyl cellulose or other permeable polymer.
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: September 30, 1997
    Assignee: Cranfield Biotechnology Ltd.
    Inventors: Stephen Birch, John Bolbot, Eric D'Costa, Irving John Higgins
  • Colorimetric enzymic analysis
    Patent number: 5527509
    Abstract: A colorimetric enzymic analytical test element comprises a support and a plurality of reaction zones incorporating a dried enzyme composition, dyestuff and reagent adapted to provide a substantial dosage independent colorimetric display when the concentration of an analyte applied to the elements exceeds a predetermined value.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: June 18, 1996
    Assignee: Cranfield Biotechnology Ltd.
    Inventors: Timothy D. Gibson, John R. Woodward, Irving J. Higgins, William J. Aston, David A. Griffiths
  • Enzyme stabilisation
    Patent number: 5240843
    Abstract: A method of stabilising enzymes or other proteins against denaturation or drying comprises mixing the protein with a cyclic polyol and a cationic polyelectrolyte.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: August 31, 1993
    Assignee: Cranfield Biotechnology Ltd.
    Inventors: Timothy D. Gibson, John R. Woodward