Patents by Inventor Graham Dransfield

Graham Dransfield 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).

  • Particulate metal oxide
    Publication number: 20070191497
    Abstract: A particulate metal oxide having the mean length of the primary particles in the range from 50 to 90 nm, the mean width of the primary particles in the range from 5 to 20 nm, and the median volume particle diameter of the secondary particles is less than 45 nm. The metal oxide can be used in a sunscreen product that exhibits both effective UV protection and improved transparency.
    Type: Application
    Filed: April 13, 2007
    Publication date: August 16, 2007
    Applicant: Croda International
    Inventors: Graham Dransfield, Susan Cutter, Phillip Lyth
  • Particulate metal oxide
    Publication number: 20060058444
    Abstract: A particulate metal oxide having the mean length of the primary particles in the range from 50 to 90 nm, the mean width of the primary particles in the range from 5 to 20 nm, and the median volume particle diameter of the secondary particles is less than 45 nm. The metal oxide can be used in a sunscreen product that exhibits both effective UV protection and improved transparency.
    Type: Application
    Filed: November 4, 2005
    Publication date: March 16, 2006
    Applicant: Imperial Chemical Industries PLC
    Inventors: Graham Dransfield, Susan Cutter, Philip Lyth