Patents by Inventor Richard Ian Walton

Richard Ian Walton 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).

  • Calcium sulphate-based products having enhanced water resistance
    Patent number: 9127166
    Abstract: A water-resistant calcium sulphate based body comprises a matrix of crystalline calcium sulphate anhydrite, crystals of the matrix being connected to one another by water-resistant phosphate bonding zones, optionally also containing aluminum. The body can be produced by impregnating a porous calcium sulphate with a source of phosphate ions (optionally containing aluminum), and then calcining. Alternatively, a paste comprising calcium sulphate and a source of phosphate ions (optionally containing aluminum) is heated or compressed to form a ‘green body’ and then calcined to produce the body.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: September 8, 2015
    Assignee: BPB Limited
    Inventors: Richard Ian Walton, Robin Fisher
  • Calcium Sulphate-Based Products Having Enhanced Water Resistance
    Publication number: 20130269571
    Abstract: A water-resistant calcium sulphate based body comprises a matrix of crystalline calcium sulphate anhydrite, crystals of the matrix being connected to one another by water-resistant phosphate bonding zones, optionally also containing aluminium. The body can be produced by impregnating a porous calcium sulphate with a source of phosphate ions (optionally containing aluminium), and then calcining. Alternatively, a paste comprising calcium sulphate and a source of phosphate ions (optionally containing aluminium) is heated or compressed to form a ‘green body’ and then calcined to produce the body.
    Type: Application
    Filed: May 24, 2010
    Publication date: October 17, 2013
    Inventors: Richard Ian Walton, Robin Fisher
  • Compound having a pyrochlore-structure and its use as a catalyst carrier in water gas shift reaction
    Patent number: 7704916
    Abstract: A compound of formula (Na0.33A0.66)2B2O7-? wherein A is one or more metals chosen from the lanthanide metals; B is one or more metals chosen from Ti, Sn, Ge, Ru, Mn, Ir, Os and Pb; and ? is a number in the range 0-1 is disclosed. Water gas shift catalysts comprising precious metals such as gold dispersed on the (Na0.33A0.66)2B2O7-? compound are also disclosed.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: April 27, 2010
    Assignee: Johnson Matthey PLC
    Inventors: Janet Mary Fisher, David Thompsett, Richard Ian Walton, Christopher Stuart Wright