Patents by Inventor Mark Robert James

Mark Robert James 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).

  • Dyes
    Patent number: 5660598
    Abstract: A dye of Formula (1): ##STR1## wherein: D is a group of Formula (2): ##STR2## or a group of Formula (3): ##STR3## or a group of Formula (4): ##STR4## The variables are defined in the specification. The dyes and dye mixtures produce blue to green shades on synthetic textile materials such as polyester which have good build up and good light- and wet-fastness.
    Type: Grant
    Filed: May 3, 1995
    Date of Patent: August 26, 1997
    Assignee: Zeneca Limited
    Inventors: Denise Cavanagh, Mark Robert James, Barry Huston Meyrick, Paul Wight