Patents by Inventor Howard Kirby Urion

Howard Kirby Urion 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).

  • Phenylazoaminophenylpyrazole acid dye solutions containing two nonionic surfactants
    Patent number: 4043752
    Abstract: Dye solutions having excellent Kusters dye bath stability comprising, by weight,I. 10% to 20% of a dye of the formula ##STR1## wherein R is H or Cl, and X is a mixture of di- and tri-C.sub.1-4 alkanolammonium,Ii. 15% to 30% of n-butanol,Iii. 10% to 20% of ethyleneglycol,Iv. 10% to 20% of nonionic polyethylene oxide-polypropylene oxide copolymer surfactant,V. 5% to 10% of nonionic polyethoxylated aliphatic amine surfactant, andVi. 0 to 50% water.
    Type: Grant
    Filed: December 17, 1975
    Date of Patent: August 23, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Lindsay Kilmurry, Howard Kirby Urion