Patents by Inventor John D. Dance

John D. Dance 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).

  • Cationic surfactant compositions
    Patent number: 4173539
    Abstract: A pourable, stable, liquid fabric-softening composition comprises an aqueous dispersion of particulate softening agent which comprises an quaternary ammonium salt having one straight-chain aliphatic hydrocarbon radical, complexed with an anion of an anionic surfactant in a normality ratio of 1.1:1 to 5:1.
    Type: Grant
    Filed: October 31, 1978
    Date of Patent: November 6, 1979
    Assignee: Lever Brothers Company
    Inventors: Robert B. Rule, Martin A. Wells, John D. Dance