Patents by Inventor Calum Hugh Munro

Calum Hugh Munro 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).

  • Colored compositions with substrate-hiding materials
    Patent number: 7288582
    Abstract: Compositions are disclosed. The compositions include a binder, a transparent or semi-transparent colorant having an average particle diameter of greater than 150 nanometers; and at least one member comprising a scattering pigment dispersed in a matrix. Substrates coated with such compositions and methods of coating substrates with such compositions are also disclosed.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: October 30, 2007
    Assignee: PPG Industries Ohio, Inc.
    Inventors: James A. Claar, Robert E. Jennings, Calum Hugh Munro
  • 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
  • Pigment compositions
    Patent number: 5718754
    Abstract: The invention provides a pigment composition comprising a pigment having adsorbed on its surface, or as a physical mixture, up to 10% by weight, based on the total weight of pigment composition of a coding compound which is a compound containing an azo, azomethine or polycyclic chromophore and which has an absorption spectrum and a Raman spectrum different from that of the pigment. The compositions are suitable for use in printing inks for security applications.
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: February 17, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Ian Alexander Macpherson, Iain Frank Fraser, Peter Cyril White, William Ewen Smith, Calum Hugh Munro