Patents by Inventor Noel Alfons-Gustaaf Vanweissenaers

Noel Alfons-Gustaaf Vanweissenaers 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).

  • Patent number: 5719116
    Abstract: A process for making a concentrated liquid detergent composition comprising the steps of: i) mixing succinic anhydride, water and an alkaline catalyst, wherein the ratio of succinic anhydride to water is at least 4:1; ii) allowing an exothermic hydrolysis reaction to take place in a buffer tank, and iii) mixing the resulting highly active, partly neutralised succinic acid with other detergent ingredients.
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: February 17, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Noel Alfons-Gustaaf Vanweissenaers, Luc Marie Willy Lievens