Patents by Inventor Caroline Towns

Caroline Towns 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).

  • Conductive polymer compositions in opto-electrical devices
    Patent number: 8945432
    Abstract: A conductive polymer composition comprising a conductive polymer in a solid polyelectrolyte.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: February 3, 2015
    Assignees: Cambridge Display Technology Limited, CDT Oxford Limited
    Inventors: Andrew Bruce Holmes, Mary J. McKiernan, Caroline Towns
  • Polar semiconductor hole transporting material
    Patent number: 8569752
    Abstract: A semiconductive hole transport material containing polar substituent groups, the polar substituent groups substantially not affecting the electronic properties of the hole transport material and the hole transport material being soluble in a polar solvent.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: October 29, 2013
    Assignees: Cambridge Display Technology Limited, CDT Oxford Limited
    Inventors: Mary J. McKiernan, Annette Steudel, Caroline Towns
  • Optical devices and their manufacture
    Patent number: 8410241
    Abstract: A process for the preparation of a polymerizable unit for production of a hole transporting polymer for use in an optical device, which process comprises reacting in the presence of S to form wherein each R is the same or different and is independently H or a substituent group; n is O or an integer from 1 to 100; Ar and Ar? are the same or different and are each aromatic or heteroaromatic groups which are substituted or unsubstituted; Y is a direct bond, a light emissive moiety, a hole transporting moiety or an electron transporting moiety; and X is a polymerizable group.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: April 2, 2013
    Assignee: Cambridge Display Technology Limited
    Inventor: Caroline Towns
  • Opto-electrical polymers and devices
    Patent number: 8389130
    Abstract: A polymer for use in an opto-electrical device comprising aromatically conjugated repeat units of optionally substituted 9,9-dimethylfluorene.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: March 5, 2013
    Assignee: CDT Oxford Limited
    Inventors: Ilaria Grizzi, Natasha Conway, Caroline Towns
  • POLAR SEMICONDUCTOR HOLE TRANSPORTING MATERIAL
    Publication number: 20120217490
    Abstract: A semiconductive hole transport material containing polar substituent groups, the polar substituent groups substantially not affecting the electronic properties of the hole transport material and the hole transport material being soluble in a polar solvent.
    Type: Application
    Filed: April 30, 2012
    Publication date: August 30, 2012
    Applicants: CDT OXFORD LIMITED, CAMBRIDGE DISPLAY TECHNOLOGY LIMITED
    Inventors: Carl R. Towns, Caroline Towns, Mary J. McKiernan, Annette Steudel
  • Polar semiconductor hole transporting material
    Patent number: 8173996
    Abstract: A semiconductive hole transport material containing polar substituent groups, the polar substituent groups substantially not affecting the electronic properties of the hole transport material and the hole transport material being soluble in a polar solvent.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: May 8, 2012
    Assignees: Cambridge Display Technology Limited, CDT Oxford Limited
    Inventors: Carl R. Towns, Caroline Towns, legal representative, Mary J. McKiernan, Annette Steudel
  • Opto-electrical devices and methods of making the same
    Patent number: 8124965
    Abstract: An opto-electrical device comprising: a first electrode for injecting charge carriers of a first polarity; a second electrode for injecting charge carriers of a second polarity; and a layer of organic material disposed between the first and second electrodes, the layer of organic material comprising a blend of a first charge transporting and/or light-emissive polymer and a second charge transporting and/or light-emissive polymer, wherein at least the first polymer is cross-linked providing a first cross-linked matrix in which the second polymer is disposed.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: February 28, 2012
    Assignees: CDT Oxford Limited, Sumitomo Chemical Co., Ltd.
    Inventors: Carl Towns, Caroline Towns, legal representative, Ilaria Grizzi
  • Optical Devices and Their Manufacture
    Publication number: 20100230659
    Abstract: A process for the preparation of a polymerizable unit for production of a hole transporting polymer for use in an optical device, which process comprises reacting in the presence of S to form wherein each R is the same or different and is independently H or a substituent group; n is O or an integer from 1 to 100; Ar and Ar? are the same or different and are each aromatic or heteroaromatic groups which are substituted or unsubstituted; Y is a direct bond, a light emissive moiety, a hole transporting moiety or an electron transporting moiety; and X is a polymerizable group.
    Type: Application
    Filed: December 23, 2005
    Publication date: September 16, 2010
    Applicant: Cambridge Display Technology
    Inventors: Carl R. Towns, Caroline Towns
  • Opto-Electrical Devices and Methods of Making the Same
    Publication number: 20100133566
    Abstract: An opto-electrical device comprising: a first electrode for injecting charge carriers of a first polarity; a second electrode for injecting charge carriers of a second polarity; and a layer of organic material disposed between the first and second electrodes, the layer of organic material comprising a blend of a first charge transporting and/or light-emissive polymer and a second charge transporting and/or light-emissive polymer, wherein at least the first polymer is cross-linked providing a first cross-linked matrix in which the second polymer is disposed.
    Type: Application
    Filed: October 9, 2007
    Publication date: June 3, 2010
    Applicants: CDT OXFORD LTD., SUMATION CO. LTD.
    Inventors: Carl R. Towns, Caroline Towns, Ilaria Grizzi
  • Opto-Electrical Polymers and Devices
    Publication number: 20090322213
    Abstract: A polymer for use in an opto-electrical device comprising aromatically conjugated repeat units of optionally substituted 9,9-dimethylfluorene.
    Type: Application
    Filed: April 19, 2007
    Publication date: December 31, 2009
    Applicant: CDT OXFORD LIMITED
    Inventors: Ilaria Grizzi, Carl R. Towns, Caroline Towns, Natasha Conway
  • Polar semiconductor hole transporting material
    Publication number: 20090152531
    Abstract: A semiconductive hole transport material containing polar substituent groups, the polar substituent groups substantially not affecting the electronic properties of the hole transport material and the hole transport material being soluble in a polar solvent.
    Type: Application
    Filed: October 11, 2005
    Publication date: June 18, 2009
    Applicants: CAMBRIDGE DISPLAY TECHNOLOGY LTD, CDT OXFORD LTD.
    Inventors: Carl R. Towns, Caroline Towns, Mary J. McKiernan, Annette Steudel