Patents by Inventor Francois Villeval

Francois Villeval 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 of bacteriological analysis, and medium for the detection of bacteria of the Salmonella genus
    Patent number: 5434056
    Abstract: The invention relates to a method of bacteriological analysis for the selective detection of Salmonella and a medium for its implementation.The method is based on the specific capacity of Salmonella to ferment glucuronic acid or one of its salts, and not to produce .beta.-galactosidase.The medium comprises a nutrient which is metabolized by the bacteria, a chromogenic or fluorigenic compound capable of being hydrolyzed by the enzyme .beta.-galactosidase, glucuronic acid or one of its salts and a pH indicator.
    Type: Grant
    Filed: May 23, 1994
    Date of Patent: July 18, 1995
    Assignee: Bio Merieux
    Inventors: Daniel Monget, Francois Villeval