Patents by Inventor Hugh Gavin Charles Hamilton

Hugh Gavin Charles Hamilton 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).

  • Method for coating particles
    Patent number: 9713842
    Abstract: The present invention relates to a method for coating primary particles with secondary particles using dual asymmetric centrifugal forces wherein, the primary particles comprise (a) at least one metal, or (b) at least one ceramic; the secondary particles comprise at least one metal or salt thereof; and wherein the secondary particles are more malleable than the primary particles.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: July 25, 2017
    Assignee: ANGLO PLATINUM MARKETING LIMITED
    Inventors: Hugh Gavin Charles Hamilton, Debra Sarah Jones
  • Method of controlling the carbon or oxygen content of a powder injection
    Patent number: 9334550
    Abstract: The present invention relates to a method for controlling the carbon and/or oxygen content in a material by forming a feedstock composition comprising at least one powder, at least one platinum group metal and at least one binder; and forming the material by powder injection molding; wherein at least a proportion of the carbon and/or oxygen is catalytically removed by the at least one platinum group metal.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: May 10, 2016
    Assignee: ANGLO PLATINUM MARKETING LIMITED
    Inventor: Hugh Gavin Charles Hamilton
  • Method for removing heavy metals from gases
    Patent number: 8366807
    Abstract: In the removal of heavy metals such as mercury from fluid streams, especially coal-derived syn-gas streams, a sulphided palladium-containing absorber gives improved results by way of mercury-absorption capacity if the absorber is sulphided.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: February 5, 2013
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Hugh Gavin Charles Hamilton, Stephen Poulston
  • METHOD OF CONTROLLING THE CARBON OR OXYGEN CONTENT OF A POWDER INJECTION
    Publication number: 20120258008
    Abstract: The present invention relates to a method for controlling the carbon and/or oxygen content in a material by forming a feedstock composition comprising at least one powder, at least one platinum group metal and at least one binder; and forming the material by powder injection molding; wherein at least a proportion of the carbon and/or oxygen is catalytically removed by the at least one platinum group metal.
    Type: Application
    Filed: October 13, 2010
    Publication date: October 11, 2012
    Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
    Inventor: Hugh Gavin Charles Hamilton
  • METHOD FOR COATING PARTICLES
    Publication number: 20110281132
    Abstract: The present invention relates to a method for coating primary particles with secondary particles using dual asymmetric centrifugal forces wherein, the primary particles comprise (a) at least one metal, or (b) at least one ceramic; the secondary particles comprise at least one metal or salt thereof; and wherein the secondary particles are more malleable than the primary particles.
    Type: Application
    Filed: November 20, 2009
    Publication date: November 17, 2011
    Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
    Inventors: Hugh Gavin Charles Hamilton, Debra Sarah Jones
  • METHOD FOR REMOVING HEAVY METALS FROM GASES
    Publication number: 20100229722
    Abstract: In the removal of heavy metals such as mercury from fluid streams, especially coal-derived syn-gas streams, a sulphided palladium-containing absorber gives improved results by way of mercury-absorption capacity if the absorber is sulphided.
    Type: Application
    Filed: June 6, 2007
    Publication date: September 16, 2010
    Applicant: Johnson Matthey Public Limited Company
    Inventors: Hugh Gavin Charles Hamilton, Stephen Poulston
  • Diesel engine exhaust gas purification method
    Patent number: 5943857
    Abstract: A process for the improved conversion of NO.sub.x in the exhaust gases from a light diesel engine using lean NO.sub.x catalyst converter in the exhaust system. The process is characterized in that unburned hydrocarbons are adsorbed into an adsorbent in the catalytic converter at temperatures below 190.degree. C. during cooler parts of the operating cycle, and are desorbed in the temperature range of 198.degree. to 200.degree. C. during hotter parts of the operating cycle. The desorbed hydrocarbons are combined with unburned hydrocarbons in the exhaust to form a composition stream having a higher amount of hydrocarbons than either constituent stream which are then oxidized at the same time as at least a portion of the NO.sub.x is catalytically reduced to form N.sub.2.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: August 31, 1999
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Graham Paul Ansell, Janet Mary Fisher, Peter Geoffrey Gray, Hugh Gavin Charles Hamilton, Raj Rao Rajaram