Patents by Inventor Guy Voisin

Guy Voisin 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).

  • Cytotoxic products formed by covalent bonding of the A chain of ricin with an antibody and the process for their preparation and use
    Patent number: 4340535
    Abstract: Carcinostatic products are formed by coupling, by covalent bonding, the A chain of ricin with an antibody which is capable of selectively recognizing a given antigen at the surface of cancerous cells. Such products can be made by the formation of a disulphide bridge between the free thiol group in the A chain of ricin and an immunoglobulin or immunoglobulin fragment into which a thiol group or an activated disulphide group has been introduced. The A chain of ricin and the immunoglobulin are carefully purified before use.
    Type: Grant
    Filed: September 27, 1979
    Date of Patent: July 20, 1982
    Assignee: C M Industries
    Inventors: Guy Voisin, Franz Jansen, Pierre Gros