Patents by Inventor Valerie Grand

Valerie Grand 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).

  • Pulsed driven displays
    Patent number: 8410242
    Abstract: A pulsed driven display comprising an organic light-emitting device, said device comprising an organic layer comprising a semiconductive polymer, said polymer comprising a fluorene or triarylamine repeat unit, the fluorene or triarylamine repeat unit having a group R pendent from the polymer backbone, wherein R has general formula I: where Ar1 represents phenyl or a group comprising napthyl; Ar2 represents phenyl or a group comprising napthyl; R? represents a substituent group; R?=H or a substituent; n=0, 1, 2 or 3; m=0 or 1; and n?=1 or 2, with the proviso that m=0 if n=0.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: April 2, 2013
    Assignees: Cambridge Display Technology Limited, CDT Oxford Limited
    Inventors: Valerie Grand, Richard Wilson, Mark Dowling, Ilaria Grizzi, Mary J. McKiernan
  • Pulsed Driven Displays
    Publication number: 20090203876
    Abstract: A pulsed driven display comprising an organic light-emitting device, said device comprising an organic layer comprising a semiconductive polymer, said polymer comprising a fluorene or triarylamine repeat unit, the fluorene or triarylamine repeat unit having a group R pendent from the polymer backbone, wherein R has general formula I: where Ar1 represents phenyl or a group comprising napthyl; Ar2 represents phenyl or a group comprising napthyl; R? represents a substituent group; R??H or a substituent; n=0, 1, 2 or 3; m=0 or 1; and n?=1 or 2, with the proviso that m=0 if n=0.
    Type: Application
    Filed: April 13, 2006
    Publication date: August 13, 2009
    Applicants: Cambridge Display Technologh Limited, CDT Oxford Limited
    Inventors: Valerie Grand, Richard Wilson, Mark Dowling, Ilaria Grizzi, Mary J. McKiernan
  • Electro-luminescent polymers, their preparation and uses
    Patent number: 6887973
    Abstract: An organic polymer comprising a conjugated backbone for transporting negative charge carriers and having a first band gap and at least one side unit pendent from the backbone for transporting positive charge carriers and having a second band gap, wherein the structure of the organic polymer is selected so that the first and second band gaps are distinct from one another in the polymer.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: May 3, 2005
    Assignee: Cambridge Display Technology Limited
    Inventors: Carl Towns, Richard O'Dell, Valerie Grand
  • Electro-luminescent polymers, their preparation and uses
    Publication number: 20030153725
    Abstract: An organic polymer comprising a conjugated backbone for transporting negative charge carriers and having a first band gap and at least one side unit pendent from the backbone for transporting positive charge carriers and having a second band gap, wherein the structure of the organic polymer is selected so that the first and second band gaps are distinct from one another in the polymer.
    Type: Application
    Filed: November 12, 2002
    Publication date: August 14, 2003
    Inventors: Carl Towns, Richard O'Dell, Valerie Grand