Patents by Inventor Frederick E. Hardy

Frederick E. Hardy 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).

  • Patent number: 4294710
    Abstract: Detergent compositions having good cleaning performance and also textile softening properties comprise an organic surfactant, alkaline reacting water-soluble salts and a specified class of tertiary amines. Optionally and preferably a smectite-type clay is also present in the compositions.The present invention relates to detergent compositions which clean well and at the same time act as textile softeners.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: October 13, 1981
    Assignee: The Procter & Gamble Company
    Inventors: Frederick E. Hardy, Colin A. Dewar
  • Patent number: 4238373
    Abstract: A process for quaternization of tertiary amines in a reaction medium comprising a water soluble or water dispersible organic compound of MWt>240 which is liquid at the quaternization reaction temperature, one of the quaternization reactants having a BPt<200.degree. C. and being volatile relative to the other reactants, to permit its removal after the completion of quaternization to leave a product comprising an intimate mixture of a cationic surfactant and the reaction medium in a weight ratio of 2:1 to 1:50. Preferably the reaction medium is an ethoxylated nonionic surfactant.
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: December 9, 1980
    Assignee: The Procter & Gamble Company
    Inventors: Frederick E. Hardy, Brian E. Talkes
  • Patent number: 4056113
    Abstract: Liquid detergent compositions comprising anionic surfactant and phosphate builder in which the cations are monoethanolammonium or monoethanolammonium in admixture with ammonium, sodium, potassium, calcium, and magnesium cations. The compositions are particularly suited for removing cooked-on foods from cooking utensils.
    Type: Grant
    Filed: August 31, 1976
    Date of Patent: November 1, 1977
    Assignee: The Procter & Gamble Company
    Inventors: Eric M. Johnson, Graeme D. Murray, Frederick E. Hardy