Patents by Inventor Max Charpentier

Max Charpentier 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).

  • Fermentation process for the production of citric and isocitric acids
    Patent number: 3997399
    Abstract: The invention relates to a process for the production of citric and osocitric acids by a culture of a diploid Candida Lipolytica yeast in a nutrient medium containing substances which are sources of carbon, nitrogen, and mineral compounds, the medium containing thiamin in a concentration in excess of 200 micrograms per liter.
    Type: Grant
    Filed: May 14, 1975
    Date of Patent: December 14, 1976
    Assignee: Institut Francais du Petrole, des Carburants et Lubrifiants et Entreprise de Recherches et d'Activities Petrolieres Elf
    Inventors: Paul Maldonado, Max Charpentier
  • Chemical process
    Patent number: 3996106
    Abstract: This invention relates to the production of citric and/or isocitric acids. The production of citric and/or isocitric acids is effected by cultivating a citric and/or isocitric acid-producing yeast in a culture medium containing a compound selected from cyanoacetic acid, and organic and inorganic derivatives thereof. Increased yields of citric and isocitric acids are obtained using a process in accordance with the invention, preferably using a yeast of the genus Candida.
    Type: Grant
    Filed: November 6, 1974
    Date of Patent: December 7, 1976
    Assignee: Institut Francais du Petrole, des Carburants et Lubrifiants et Entreprise de Recherches et d'Activities Petrolieres Elf
    Inventors: Paul Maldonado, Max Charpentier, Georges Glikmans