Patents by Inventor Arthur E. Le Blanc

Arthur E. Le Blanc 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).

  • Drug compositions
    Patent number: 4223004
    Abstract: Monitorable drug compositions contain known proportions by weight of a drug e.g. methadone and an isotopic analogue e.g. deuterated methadone. A urine specimen or blood specimen can be tested to reveal whether the proportion of the two constituents in the urine is the same as the proportion in the composition that was prescribed to the patient. A discrepancy will reveal that the patient has supplemented his dosage with drugs obtained from another source.
    Type: Grant
    Filed: May 23, 1977
    Date of Patent: September 16, 1980
    Assignee: The Governing Council of the University of Toronto
    Inventors: Jen C. Hsia, Arthur E. Le Blanc, Joan A. Marshman