Patents by Inventor Michael O. Hunt, Jr.

Michael O. Hunt, Jr. 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).

  • Vat acid dyeing of textile fibers
    Patent number: 6942706
    Abstract: A process for dyeing certain textile fibers, utilizing vat acid dyeing and specific additional (second) reducing agents such as ?-hydroxyalkylsulfinic acids, their salts and 1,2,4-trithiolane, resulting in excellent depth of shade and washfastness, is provided.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: September 13, 2005
    Assignee: Invista North America S.a.r.l.
    Inventors: Stephen M. Birkinshaw, Samit N. Chevli, Michael O. Hunt, Jr., Lee D. Jones, David M. Lewis, David J. Marfell
  • Vat acid dyeing of textile fibers
    Patent number: 6780205
    Abstract: A process for dyeing certain textile fibers, utilizing vat acid dyeing and specific additional (second) reducing agents such as &agr;-hydroxyalkylsulfinic acids, their salts and 1,2,4-trithiolane, resulting in excellent depth of shade and washfastness, is provided.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: August 24, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Stephen M. Birkinshaw, Samit N. Chevli, Michael O. Hunt, Jr., Lee D. Jones, David M. Lewis, David J. Marfell
  • Method of making fluorinated copolymers
    Patent number: 5360869
    Abstract: A process for making a fluorinated copolymer is disclosed. The process comprises polymerizing a monomer to form a polymer and then terminating the polymerization by adding a perfluorinated alkyl chlorosilane to the polymer. The perfluorinated alkyl chlorosilane reacts with the polymer to form a copolymer having a fluorinated terminal portion thereon.
    Type: Grant
    Filed: November 5, 1992
    Date of Patent: November 1, 1994
    Assignee: University of North Carolina at Chapel Hill
    Inventors: Joseph M. DeSimone, Michael O. Hunt, Jr.