Patents by Inventor Darrin McBane Guthrie

Darrin McBane Guthrie 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).

  • Dyed textile article and dye bath assistant
    Patent number: 7967873
    Abstract: A dyed textile article. The dyed textile article includes a synthetic fiber substrate and a dye affixed to the substrate in a dye process that includes a using a dye assistant having an amidic nitrogen adjacent to an aromatic ring. The dye assistant may be N-methyl formanilide. The substrate of the present inventions may be a variety of substrates and is most preferably an aromatic polyamide. The present inventions also include a dye bath and a method of dyeing using a dyeing assistant having an amidic nitrogen adjacent to an aromatic ring.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: June 28, 2011
    Assignee: Bozzetto, Inc.
    Inventor: Darrin McBane Guthrie
  • Composition for dyeing material of synthetic aromatic polyamide fibers comprising a cationic dye and novel dye assistant
    Patent number: 6551362
    Abstract: A composition for dyeing material of synthetic aromatic polyamide fibers, said composition containing a mixture of (a) a cationic dye and (b) a cyclohexenone as a dye assistant. Preferably, 2-cyclohexen-1-one,3,5,5-trimethyl is the dye assistant.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: April 22, 2003
    Assignee: BGB Stockhausen GmbH
    Inventors: Darrin McBane Guthrie, Harold Kenneth Greeson, Jr., Malcolm S. Haith
  • Composition for dyeing material of synthetic aromatic polyamide fibers comprising a cationic dye and novel dye assistant
    Publication number: 20020144362
    Abstract: A composition for dyeing material of synthetic aromatic polyamide fibers, said composition containing a mixture of (a) a cationic dye and (b) a cyclohexenone as a dye assistant. Preferably, 2-cyclohexen-1-one,3,5,5-trimethyl is the dye assistant.
    Type: Application
    Filed: February 2, 2001
    Publication date: October 10, 2002
    Inventors: Darrin McBane Guthrie, Harold Kenneth Greeson, Malcolm S. Haith