Patents by Inventor Charles C. Verburg

Charles C. Verburg 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).

  • Liquid cleaning products
    Patent number: 5466390
    Abstract: Substantially non-aqueous liquid cleaning compositions comprise a non-aqueous liquid phase, which liquid phase comprises an alkylpolyglucoside partial ether. Specific novel alkylpolyglucoside partial ether are also claimed.
    Type: Grant
    Filed: July 7, 1993
    Date of Patent: November 14, 1995
    Assignee: Lever Brothers Company
    Inventors: Mark P. Houghton, Charles C. Verburg
  • Non-aqueous liquid detergents containing a dispersed solid material with two different size fractions
    Patent number: 5456849
    Abstract: A substantially non-aqueous liquid cleaning product composition comprises from 10 to 90% by weight of a non-aqueous organic solvent, from 0.01 to 15% by weight of a deflocculant and from 30 to 90% by weight of particles of solid material dispersed in the solvent, wherein from 25 to 75% by weight of the solid material has a D(3,2) average particle diameter of less than 10 .mu.m and from 75 to 25% by weight of the solid material has a D(3,2) average particle diameter of more than 10 .mu.m, and the D(3,2) average particle size of the solid material is more than 10 .mu.m.
    Type: Grant
    Filed: July 8, 1994
    Date of Patent: October 10, 1995
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Mark P. Houghton, Charles C. Verburg
  • Non-aqueous liquid cleaning products comprising polyalkoxylated derivatives of castor oil ricinoleic acid and analogous fatty alcohols
    Patent number: 5378387
    Abstract: Substantially non-aqueous liquid cleaning compositions comprising a non-aqueous liquid phase that comprises a polyalkoxylated castor oil derivative and/or polyalkoxylated derivatives of ricinoleic acid (set forth as formula (III)) and/or polyalkoxylated derivatives of analogous fatty alcohols (set forth as formula (IV)).
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: January 3, 1995
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Mark P. Houghton, Charles C. Verburg
  • Non-aqueous cleaning compositions containing bleach and capped nonionic surfactant
    Patent number: 4988462
    Abstract: A substantially non-aqueous liquid cleaning product composition comprising solid particles dispersed in a liquid solvent phase, said composition comprising a bleach system which comprises a persalt bleach and a precursor therefor, said liquid solvent phase comprising a capped alkoxylated nonionic surfactant. When the capped nonionic is ester-capped, the presence of a further precursor is not essential.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: January 29, 1991
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Frederik J. Schepers, Charles C. Verburg