Patents by Inventor Catherine J. Page

Catherine J. Page 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).

  • Cross-linkable phosphonate-containing supramolecular complexes and their use for delivery of therapeutic and diagnostic agents
    Publication number: 20030224038
    Abstract: Cross-linkable, phosphonate containing supramoleuclar aggregates are disclosed, which may be used to advantage, for example, as drug delivery vehicles for the treatment of bone-related disorders.
    Type: Application
    Filed: February 20, 2003
    Publication date: December 4, 2003
    Inventors: Catherine J. Page, Marcus Helfrich
  • X-ray intensifying screens containing activated rare earth borates
    Patent number: 4883970
    Abstract: X-ray phosphor consisting essentially ofGd.sub.1-X BO.sub.3 :Ce.sub.Xwherein X is 0.001 to 0.09 and process of preparation wherein reactant sources of gadolinium, boron and cerium, e.g., oxides, and flux, e.g., mixture of alkali metal halide and tetraborate, mixture of alkali metal sulfates, are mixed and fired at a temperature in excess of that required to melt the flux, leaching out the flux with water and drying to obtain substantially spherical particles, 0.5 to 20 .mu.m in average diameter. The X-ray phosphor is useful in an X-ray screen which is used in combination with a silver halide, e.g., silver bromide emulsion.
    Type: Grant
    Filed: December 14, 1988
    Date of Patent: November 28, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Catherine J. Page