Patents by Inventor Stephen Derek Rogers

Stephen Derek Rogers 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).

  • Sediment assessment
    Patent number: 8189876
    Abstract: There are described methods and apparatus for assessing sediments generated in liquid-based systems. The methods involve optically obtaining information to enable height and, thus, volume data relating to sediments to be measured. Although single samples of liquid-based systems may be processed the methods are particularly suited to processing multiple samples to obtain data relating to sediments at a high rate. The apparatus includes automated handling equipment to enable samples to be moved between workstations and relative to associated optical equipment that is used to obtain information relating to the sediments.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: May 29, 2012
    Assignee: Brunob II BV
    Inventors: William Neville Eugen Meredith, John Carroll, Stephen Derek Rogers
  • Sediment Assessment
    Publication number: 20080137904
    Abstract: There are described methods and apparatus for assessing sediments generated in liquid-based systems. The methods involve optically obtaining information to enable height and, thus, volume data relating to sediments to be measured. Although single samples of liquid-based systems may be processed the methods are particularly suited to processing multiple samples to obtain data relating to sediments at a high rate. The apparatus includes automated handling equipment to enable samples to be moved between workstations and relative to associated optical equipment that is used to obtain information relating to the sediments.
    Type: Application
    Filed: August 18, 2005
    Publication date: June 12, 2008
    Applicant: Imperial Chemical Industries PLC
    Inventors: William Neville Eugen Meredith, John Carroll, Stephen Derek Rogers
  • Hydrogenation catalysts
    Patent number: 6846772
    Abstract: Production of nickel/silica hydrogenation catalyst precursors by heating a slurry of particulate silica, e.g. kieselguhr, in an aqueous nickel ammine carbonate solution for a total period of at least 200 minutes at a pH above 7.5, followed by filtration, washing, drying, and optionally calcination.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: January 25, 2005
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Cornelis Martinus Lok, Gavin Gray, Stephen Derek Rogers, Stephen Bailey
  • Polymeric film having a coating layer of a phosphonic acid group containing polymer
    Patent number: 6759178
    Abstract: A printing plate includes a substantially free gelatin free polymeric film which includes a coating layer of a polymer having at least one -POXY pendant group, pendant carboxyl groups and further comprises a sulphonated monomer, salt or derivative.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: July 6, 2004
    Assignee: DuPont Teijin Films US Limited Partnership
    Inventors: Noel Stephen Brabbs, Andrew Charles Street, Karen Goodchild, Cornell Chappel, Jr., Junaid Ahmed Siddiqui, Stephen Derek Rogers
  • Hydrogenation catalysts
    Publication number: 20030150774
    Abstract: Production of nickel/silica hydrogenation catalyst precursors by heating a slurry of particulate silica, e.g. kieselguhr, in an aqueous nickel ammine carbonate solution for a total period of at least 200 minutes at a pH above 7.5, followed by filtration, washing, drying, and optionally calcination.
    Type: Application
    Filed: January 21, 2003
    Publication date: August 14, 2003
    Inventors: Cornelis Martinus Lok, Gavin Gray, Stephen Derek Rogers, Stephen Bailey
  • Polymeric film having a coating layer of a phosphonic acid group containing polymer
    Publication number: 20030013042
    Abstract: A polymeric film which is substantially gelatin free has a polymeric film substrate and a coating layer containing a polymer having at least one or more repeating units having at least one or more pendant (—POXY) groups, wherein X and Y, which may be the same or different, are OH or OM wherein M is a cation. The polymeric film is suitable for use as a component of a printing plate.
    Type: Application
    Filed: July 31, 2002
    Publication date: January 16, 2003
    Inventors: Noel Stephen Brabbs, Cornell Chappel, Karen Goodchild, Andrew Charles Street, Junaid Ahmed Siddiqui, Stephen Derek Rogers
  • Polymeric film having a coating layer of a phosphonic acid group containing polymer
    Patent number: 6495309
    Abstract: A substantially gelatin free polymeric film includes a coating layer of a polymer having at least one —POXY pendant group, pendant carboxyl group or capable of forming carboxyl groups and further comprises a sulphonated monomer, salt or derivative.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: December 17, 2002
    Assignees: E.I. Du Pont de Nemours and Company, Du Pont Teijin Films U.S. Limited Partnership
    Inventors: Noel Stephen Brabbs, Andrew Charles Street, Karen Goodchild, Cornell Chappel, Jr., Junaid Ahmed Siddiqui, Stephen Derek Rogers