Patents by Inventor Brian Rossall

Brian Rossall 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).

  • Oral compositions
    Patent number: 4988498
    Abstract: The present invention relates to an oral composition such as a dentifrice. It has been found that the stability of a monofluorophosphate and a soluble zinc compound such as zinc citrate is improved in a dentifrice if instead of milled alumina trihydrate abrasive an unmilled precipitated alumina trihydrate abrasive is used in the dentifrice.
    Type: Grant
    Filed: July 27, 1989
    Date of Patent: January 29, 1991
    Assignee: Unilever Patent Holdings B.V.
    Inventors: Kenneth A. Evans, Paul I. Biley, Brian Rossall
  • Detergent compositions containing alkyl sulfate isomers
    Patent number: 4235752
    Abstract: Detergent compositions useful more particularly, but not exclusively, for dishwashing, comprising as active detergent ingredient a C.sub.10 -C.sub.18 secondary alkyl sulphate, said secondary alkyl sulphate containing up to 50% of 2/3 sulphate isomers and at least 40% of effective isomers selected from the group consisting of C.sub.14.sup.-2, C.sub.15.sup.-2/3/4/5/6, C.sub.16.sup.-3/4/5/6/7 and C.sub.17.sup.-7/8/9 isomers, and mixtures thereof.Preferred compositions having improved dishwashing properties comprise further a co-surfactant and an alkylbenzene sulphonate.
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: November 25, 1980
    Assignee: Lever Brothers Company
    Inventors: Brian Rossall, Jeffrey D. Hampson