Patents by Inventor Agnes Ramsteiner

Agnes Ramsteiner 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).

  • Extracellular exopolymer, process for its preparation and pharmaceutical compositions containing the said exopolymer
    Patent number: 5114848
    Abstract: An extracellular exopolymer endowed with immunomodulating properties is prepared by culturing the Bifidobacterium infantis longum strain deposited at the Institut Pasteur under No. I-885 in a suitable medium under anaerobic conditions. After the microorganisms are discarded from the culture medium, the exopolymer thus produced is isolated, concentrated and then precipitated by adding an organic solvent; finally the product resulting from the precipitation is lyophilized.The exopolymer thus obtained possesses an activity on cellular as well as on humoral immunity, and could thus be used as an immunomodulating agent in any potential therapeutic application.
    Type: Grant
    Filed: August 9, 1990
    Date of Patent: May 19, 1992
    Assignee: Laboratoires OM S.A.
    Inventors: Ramon Pares Farras, Juan Jofre Torroella, Jean-Paul Ricard, Adrian Schulthess, Jean-Claude Farine, Marie-Christine Michelet, Agnes Ramsteiner, Jacques Bauer