Patents by Inventor Cornelis Bernard Donker

Cornelis Bernard Donker 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).

  • Domestic care product
    Patent number: 6362159
    Abstract: A domestic care product comprising a fragrance particle wherein the particle comprises a fragrance composition and at least one silicone polymer having a melting point of at least 10° C., provided that at least 20% of the silicone atoms in the silicone polymer have a substituent of 16 carbon atoms or more. The fragrance may be employed in relatively small proportions and yet deliver fragrance to a domestic care product over a prolonged period of time by use these silicone polymers.
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: March 26, 2002
    Assignee: Unilever Home & Personal Care USA
    Inventors: Louis Aguadisch, Daniel Pierre Berthod, Gerrit Van Buuren, Cornelis Bernard Donker, Bertrand Lenoble, Franck Renauld
  • Detergent compositions
    Patent number: 6358910
    Abstract: A tablet of compacted particulate detergent composition including surfactant and detergency builder, suitable for fabric washing, is sub-divided into a plurality of discrete regions with differing compositions. At least one region of the tablet contains a water-swellable polymer serving to promote disintegration of this region. The polymer is present in this region in a concentration greater than in at least one other region of the tablet so as to cause disintegration of the region at a greater speed than disintegration of another region of the tablet.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: March 19, 2002
    Assignee: Lever Brothers Company, divison of Conopco, Inc.
    Inventors: Jelles Vincent Boskamp, Cornelis Bernard Donker, Edwin Leo Lempers
  • Non-aqueous liquid cleaning products which contain modified silica
    Patent number: 5714449
    Abstract: A non-aqueous liquid cleaning composition comprising a non-aqueous organic solvent, particles of solid material dispersed in the solvent and a dispersant, wherein the dispersant is a hydrophobically modified material.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: February 3, 1998
    Assignee: Unilever Patent Holdings B.V.
    Inventors: Cornelis Bernard Donker, Pieter Versluis
  • Liquid detergent compositions
    Patent number: 5672580
    Abstract: An aqueous liquid detergent composition comprising a primary alkyl sulphate material, which is present in a non-solid dispersed phase.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: September 30, 1997
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Cornelis Bernard Donker, David Machin, Frederik Jan Schepers