Patents by Inventor James Myron Hanna

James Myron Hanna 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).

  • Vibrant and durable hair colouring compositions comprising non oxidative azo thiosulphate dye molecules
    Publication number: 20030229947
    Abstract: The present invention relates to consumer improved hair colouring compositions, which provide improved vibrancy and durability of vibrancy, mulitfaceted colour and complete gray coverage both immediately after dyeing and over the wash and dry cycle. In particular the invention relates to hair colouring compositions comprising specified non oxidative azo thiosulphato dyes and their utilization in combination with oxidative coupler and developer dye systems.
    Type: Application
    Filed: December 3, 2002
    Publication date: December 18, 2003
    Inventors: Colin John Clarke, Guido Joseph Danhieux, James Charles Dunbar, James Myron Hanna, Stevan David Jones
  • Bunte salt azo dye compound
    Patent number: 6515114
    Abstract: The invention relates to a Bunte salt azo dye composition comprising an azo dye containing at least one Bunte salt group. The resulting dye is water soluble material which is useful in the rapid dying of natural and synthetic fibers. The Bunte salt azo dye of the present invention can be used without requiring a mordanting step or a concurrent or pre-reducing step to condition fibers of animal hair to accept the dye to achieve strong color performance.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: February 4, 2003
    Assignee: Clariant Finance (BVI) Limited
    Inventors: James Myron Hanna, Jr., Guido Joseph Danhieux