Patents by Inventor John Michael McCarthy

John Michael McCarthy 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).

  • Pigment composition
    Patent number: 6197103
    Abstract: A composition of copper phthalocyanines containing, on average, from 0.1 to 3 methyl groups per phthalocyanine nucleus. The composition is suitable for the coloration of paints and plastics materials.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: March 6, 2001
    Assignee: Zeneca Limited
    Inventors: Peter Kingsley Davies, John David Schofield, John Michael McCarthy
  • Pigment composition
    Patent number: 5954870
    Abstract: A composition of copper phthalocyanines containing, on average, from 0.1 to 3 methyl groups per phthalocyanine nucleus. The composition is suitable for the coloration of paints and plastics materials.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 21, 1999
    Assignee: Zeneca Limited
    Inventors: Peter Kingsley Davies, John David Schofield, John Michael McCarthy