Patents by Inventor John Double

John Double 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).

  • Ink-jet ink compositions
    Patent number: 6727296
    Abstract: A water-dissipatable polymer having colorant attached thereto through a covalent —O-link and an ink comprising the water-dissipatable polymer and a liquid medium.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: April 27, 2004
    Assignee: Avecia Limited
    Inventors: David Alan Pears, John Christopher Padget, Mark Robert James, Peter Gregory, Philip John Double
  • Printing process using specified AZO compounds
    Publication number: 20040020404
    Abstract: A process for printing an image on a substrate comprising applying thereto a composition comprising a liquid medium and a compound of Formula (1):
    Type: Application
    Filed: April 11, 2003
    Publication date: February 5, 2004
    Applicant: Avecia Limited
    Inventors: Ajay Haridas Popat, Alan Dickinson, Maria Soteri Hadjisoteriou, Neil James Thompson, Paul Wight, Peter Gregory, Roy Bradbury, Philip John Double, Thomas Paul
  • Tamoxifen and analogues thereof
    Patent number: 6172263
    Abstract: A method of preparing a first geometric isomer of tamoxifen or an analogue comprises allowing the first isomer to crystallize in hexanol and the product thereof to crystallize in methanol and then derivatising the product of the methanol crystallization to prepare said first isomer in very high purity.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: January 9, 2001
    Assignee: Bradford University
    Inventors: John Double, Derek Maitland, Ioana Popa