Patents by Inventor Philippa L. Heritage

Philippa L. Heritage 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).

  • Microparticle delivery system with a functionalized silicone bonded to the matrix
    Patent number: 5571531
    Abstract: A particulate carrier for an agent comprising a solid core of a polysaccharide and a proteinaceous material and an organometallic polymer bonded to the core is provided. The agent has a biological activity, such as immunogenicity, and may comprise the proteinaceous material or be a separate component of the core. Polysaccharide cores include dextran, starch, cellulose and derivatives thereof and the organometallic polymer includes silicones including substituted silicones. The particulate carriers are useful for delivering agents to the immune system of a subject by mucosal or parenteral administration to produce immune responses, including antibody responses.
    Type: Grant
    Filed: May 18, 1994
    Date of Patent: November 5, 1996
    Assignee: McMaster University
    Inventors: Mark R. McDermott, Michael A. Brook, Philippa L. Heritage, Brian J. Underdown, Lesley M. Loomes, Jianxiong Jiang