Patents by Inventor Nancy J. Levy

Nancy J. Levy 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).

  • Bacterial antigens, antibodies, vaccines and methods of manufacture
    Patent number: 5302386
    Abstract: Antigens and vaccines containing purified oligomers (1-50 units) of the repeating pentasaccharide unit of type III Group B Stretococcus (III GBS) polysaccharide capsule. Methods of making the antigen by recovering polysaccharide from cultured III GBS or medium and digesting the polysaccharide with a specific endo-.beta.-galactosidase. Enzymatic cleavage of bacterial polysaccharide to make purified oligomers. A purified trypsin-resistant C surface protein, m.w. about 14,000 and vaccine. Passive immunization using the above vaccines. Immunoassays for GBS immunodeterminants or anti-GBS antibodies.
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: April 12, 1994
    Assignee: Brigham and Women's Hospital, Inc.
    Inventors: Dennis L. Kasper, Harold J. Jennings, Nancy J. Levy, Michael R. Wessels