Patents by Inventor Janet E. Norton

Janet E. Norton 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).

  • Patent number: 5227298
    Abstract: The subject invention provides a method of encapsulating viable tissue or cells within a double walled bead, the double-walled bean produced as a result of the method, as well as a method of pretreating the tissue or cells with an immunosuppressant such as UV-B irradiation prior to their encapsulation.
    Type: Grant
    Filed: August 17, 1990
    Date of Patent: July 13, 1993
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Collin J. Weber, Janet E. Norton, Keith Reemtsma