Patents by Inventor Sharon Kathleen Wilson

Sharon Kathleen Wilson 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).

  • Method of improving pigment fluorescence
    Patent number: 7160371
    Abstract: A process for the preparation of organic pigments with enhanced fluorescence, which process comprises treating said pigments with a surfactant, and to the fluorescent organic pigments obtained by said process. The pigments according to the present invention can be used in marking applications, wherein durable fluorescence is required.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: January 9, 2007
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Iain Frank Fraser, Sharon Kathleen Wilson, Ian Alexander Macpherson
  • Method of improving pigment fluorescence
    Patent number: 6923856
    Abstract: A process for the preparation of organic pigments with enhanced fluorescence, which process comprises treating said pigments with a surfactant, and to the fluorescent organic pigments obtained by said process. The pigments according to the present invention can be used in marking applications, wherein durable fluorescence is required.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: August 2, 2005
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Iain Frank Fraser, Sharon Kathleen Wilson, Ian Alexander Macpherson
  • Method of improving pigment fluorescence
    Publication number: 20040011251
    Abstract: The present invention is directed to a process for the preparation of organic pigments with enhanced fluorescence, which process comprises treating said pigments with a sufactant, and to the fluorescent organic pigments obtained by said process. The pigments according to the present invention can be used in marking applications, wherein durable fluorescence is required.
    Type: Application
    Filed: April 29, 2003
    Publication date: January 22, 2004
    Inventors: Iain Frank Fraser, Sharon Kathleen Wilson, Ian Alexander Macpherson
  • Azo orange pigment composition
    Patent number: 6613140
    Abstract: The present invention relates to a composition comprising at least one azo pigment of the formula optionally additional azo pigments and a surfactant, and from 0.1 to 50% by weight of a selected resin. The invention further relates to a process for its preparation, its use for the preparation of dispersions, paint systems, coating materials, color filters, inks, preferably printing inks, as well as color toners comprising the inventive pigment compositions, particularly preferable as liquid inks in the packaging industry, and liquid inks for the packaging industry.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: September 2, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Greig Chisholm, Sharon Kathleen Wilson
  • Azo orange pigment composition
    Publication number: 20020096086
    Abstract: Composition comprising
    Type: Application
    Filed: September 17, 2001
    Publication date: July 25, 2002
    Inventors: Greig Chisholm, Sharon Kathleen Wilson
  • Pigment compositions
    Patent number: 5853464
    Abstract: The present invention provides an ink which contains a SERS--active metal aggregate containing a Raman active compound.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: December 29, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Ian Alexander Macpherson, Iain Frank Fraser, Sharon Kathleen Wilson, Peter Cyril White, Calum Hugh Munro, William Ewen Smith
  • Substituted phthalocyanines
    Patent number: 5759254
    Abstract: The present invention provides a phthalocyanine of Formula (1): ##STR1## wherein: MPc is a phthalocyanine nucleus of Formula (2); ##STR2## in which M is a metal atom, a chloro-metal group, an oxy-metal group or hydrogenX is halogenR.sup.1 is an benzylamino or N-alkyl aminoalkylR.sup.2 is H or an optionally substituted alkyla has an average value from 15 to 8b has an average value from 1 to 8a+b is from 4 to 16.
    Type: Grant
    Filed: July 18, 1996
    Date of Patent: June 2, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Ian Alexander Macpherson, Iain Frank Fraser, Sharon Kathleen Wilson