Patents by Inventor Stephen Hoi-Chuen Ip

Stephen Hoi-Chuen Ip 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).

  • Compounds which inhibit complement and/or suppress immune activity
    Patent number: 5656659
    Abstract: The present invention is directed to compounds which suppress immune responses and/or selectivly inhibit complement. These compounds contain an aromatic ring and are substituted dihydrobenzofurans, spirobenzofuran-2(3H)-cycloalkanes, and their open chain intermediates. The compounds of the present invention, and the phamaceutically acceptable salts thereof, interrupt the proteolytic processing of C5 to bioactive components, exhibit immunosuppressive activites, and have therapeutic utility in the amelioration of disease and disorders mediated by complement and/or immune activity.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: August 12, 1997
    Assignees: T Cell Sciences, Inc., The University of Mississippi
    Inventors: Robert D. Sindelar, Barton J. Bradbury, Teodoro Saul Kaufman, Stephen Hoi-Chuen Ip, Henry Clinton Marsh, Jr., Chew Lee