Patents by Inventor Carlo J. van den Bergh

Carlo J. van den Bergh 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).

  • Aqueous enzymatic detergent compositions
    Patent number: 5501820
    Abstract: A stable aqueous enzymatic detergent composition comprising:(a) from about 5 to about 65% by weight of a surfactant;(b) a mutant subtilisin enzyme in which the amino acid sequence has been changed at least at positions 195 and 222 by substitution with another amino acid, said enzyme being added in sufficient quantity to have an activity level of 0.01 to 200,000 GU/g;said composition being essentially free from bleaching agents and/or comprising (c) a further enzyme selected from the group consisting of lipases, amylases and cellulases.
    Type: Grant
    Filed: March 17, 1994
    Date of Patent: March 26, 1996
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Carlo J. van den Bergh, Howard B. Kaiserman, Marja Ouwendijk