Patents by Inventor Julie Anne Fergus

Julie Anne Fergus 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).

  • Compound, compositions and use
    Patent number: 6858703
    Abstract: A polymeric material comprises at least one repeat unit consisting substantially of a moiety of Formula 1: in which Y1 represents N, P, S, As and/or Se. Ar1 and Ar2, which may the same or different, represent independently a multivalent, optionally substituted aromatic group, and Ar3 represents independently a mono or multivalent, optionally substituted aromatic group. At least one terminal group is attached in the polymer to the Ar1, Ar2 and optionally Ar3 groups located at the end of the polymer chains, so as to cap the polymer chains and prevent further polymer growth. At least one terminal group is derived from at least one end capping reagent used in the polymerization to form the polymeric material to control the molecular weight thereof. A charge transport material comprising such polymers is useful in electroreprographic and electroluminescent devices. These polymers may be made by controlling their molecular weight with an end capping reagent.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: February 22, 2005
    Assignee: Avecia Limited
    Inventors: Joanne Victoria Allen, John Dylan Morgan, Julie Anne Fergus, Mark Thomas, Stephen William Leeming
  • Compound, compositions and use
    Publication number: 20040054095
    Abstract: A polymeric material comprises at least one repeat unit consisting substantially of a moiety of Formula 1: 1
    Type: Application
    Filed: May 12, 2003
    Publication date: March 18, 2004
    Applicant: Avecia Limited of Blackley
    Inventors: Joanne Victoria Allen, John Dylan Morgan, Julie Anne Fergus, Mark Thomas, Stephen William Leeming
  • Polymeric material comprising N, P, S, As, or Se and composition for charge transport material
    Patent number: 6630566
    Abstract: A polymeric material comprises at least one repeat unit consisting substantially of a moiety of Formula 1: in which Y1 represents N, P, S, As and/or Se, Ar1 and Ar2, which may the same or different, represent independently a multivalent, optionally substituted aromatic group, and Ar3 represents independently a mono or multivalent, optionally substituted aromatic group. At least one terminal group is attached in the polymer to the Ar1, Ar2 and optionally Ar3 groups located at the end of the polymer chains, so as to cap the polymer chains and prevent further polymer growth. At least one terminal group is derived from at least one end capping reagent used in the polymerisation to form the polymeric material to control the molecular weight thereof. A charge transport material comprising such polymers is useful in electroreprographic and electroluminescent devices. These polymers may be made by controlling their molecular weight with an end capping reagent.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: October 7, 2003
    Assignee: Avecia Limited
    Inventors: Joanne Victoria Allen, John Dylan Morgan, Julie Anne Fergus, Mark Thomas, Stephen William Leeming