Patents by Inventor Denis Raichvarg

Denis Raichvarg 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).

  • Novel polysaccharide extracts and method of use
    Patent number: 4210641
    Abstract: Novel polysaccharide extracts of microbial bodies of Haemophilus influenza having an apparent molecular weight greater than 200,000 and constituted principally of galactose, glucose and mannose having remarkable antigenic and immunostimulating activity with very good tolerance in warm-blooded animals and a process for their preparation.
    Type: Grant
    Filed: October 20, 1978
    Date of Patent: July 1, 1980
    Assignee: Roussel Uclaf
    Inventors: Claudine Brossard, Martine Henry, Denis Raichvarg