Patents by Inventor Michel M. Ringuet

Michel M. Ringuet 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).

  • Tetrapyrrole hydroxyalkylamide photochemotherapeutic agents
    Patent number: 5219878
    Abstract: This invention relates to new preparations which are valuable for photodetection and photochemotherapy of tumors and malignant tissues. The active compounds of these therapeutic preparations are mono-, di- or polyamides of an amino alcohol and a cyclic tetrapyrrole containing at least one carboxyl group. The general structure of these active compounds is(ZNHCO).sub.n Xwherein Z is the amino alcohol molecule less the amino group, X is the tetrapyrrole molecule less a carboxyl group, and "n" is an integer from 1 to 8.
    Type: Grant
    Filed: December 16, 1991
    Date of Patent: June 15, 1993
    Assignee: Queen's University
    Inventors: Michel M. Ringuet, James C. Kennedy, Roy H. Pottier