Patents by Inventor Frederik Schepers

Frederik Schepers 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).

  • Method for creating a pH jump system
    Patent number: 5484555
    Abstract: The present invention relates to a composition in which the pH is raised when diluted in the wash and which composition comprises (1) a surfactant system; (2) an N-containing compound and (3) metal salt from group 1B to 8B of the periodic table and/or a metal salt from group 3A or 4A of the periodic table. The N-compound and metal are believed to form a complex which reduces pH in product, but which raises pH when the complex dissociates in the wash. The invention further relates to a process of creating a pH jump system while laundering or cleaning hard surfaces using such a composition.
    Type: Grant
    Filed: March 24, 1994
    Date of Patent: January 16, 1996
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventor: Frederik Schepers