Patents by Inventor Colin Michael Brennan

Colin Michael Brennan 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).

  • Dyeing process and dyes
    Patent number: 5976197
    Abstract: A process for defining a substrate is provided. The process comprises applying to the substrate a water soluble dye having at least two electrophilic groups and a nucleophilic agent having a molecular weight below 600 and at least one group selected from aliphatic primary amino groups and secondary amino groups.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: November 2, 1999
    Assignee: Zeneca Limited
    Inventors: Michael Gordon Hutchings, Colin Michael Brennan, Neil Anthony Tallant, Andrew Paul Shawcross, Prakash Patel, Warren James Ebenezer