Patents by Inventor Valerie Leloup

Valerie Leloup 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: 5897903
    Abstract: A process for the counter-current extraction of soluble coffee solids. Soluble coffee solids are extracted from roast and ground coffee in a first extraction stage using a primary extraction liquid at a temperature of 80.degree. C. to 160.degree. C. Then soluble coffee solids are extracted from the partially extracted grounds in a second extraction stage using a secondary extraction liquid at a temperature of 160.degree. C. to 190.degree. C., the coffee grounds having at least 25% by weight of soluble coffee solids extracted from them. The coffee grounds obtained from the second extraction stage are drained and thermally hydrolyzed in a hydrolysis stage at a temperature of 160.degree. C. to 220.degree. C. for 1 to 15 minutes. Soluble coffee solids are extracted from the hydrolyzed coffee grounds in a third extraction stage using a tertiary extraction liquid at a temperature of 170.degree. C. to 195.degree. C. to provide extracted coffee grounds and a hydrolyzed coffee extract.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: April 27, 1999
    Assignee: Nestec S.A.
    Inventors: Elke Gerhard-Rieben, Claude Rene Lebet, Valerie Leloup, Klaus Schlecht