Patents by Inventor Edgar F. Ribi, deceased

Edgar F. Ribi, deceased 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).

  • Derivatives of monophosphoryl lipid A
    Patent number: 4987237
    Abstract: Novel derivatives of monophosphoryl lipid A and a process for their preparation are provided. The derivatives contain one or more free groups, such as an amine, on a side chain attached to the primary hydroxyl groups of the monophosphoryl lipid A nucleus through an ester group. The derivatives provide a convenient method for coupling the lipid A through coupling agents to various biologically active materials, substrates, and the like, wherein the immunostimulant properties of lipid A are desired.
    Type: Grant
    Filed: October 22, 1987
    Date of Patent: January 22, 1991
    Assignee: Ribi ImmunoChem Research, Inc.
    Inventors: Kent R. Myers, Edgar F. Ribi, deceased