Patents by Inventor Catherine K. Jung

Catherine K. Jung 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).

  • Preparation of saturated ketone morphinan compounds
    Patent number: 9040705
    Abstract: The present invention provides processes for the preparation of saturated ketone morphinan compounds. In particular, the invention provides processes for the conversion of a morphinan comprising an allyl alcohol ring moiety into a morphinan comprising a saturated ketone ring moiety by an isomerization reaction catalyzed by an inorganic salt of a late transition metal.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: May 26, 2015
    Assignee: Mallinckrodt LLC
    Inventors: Peter X. Wang, Tao Jiang, Narayanasamy Gurusamy, Catherine K. Jung
  • Preparation of Saturated Ketone Morphinan Compounds
    Publication number: 20100261907
    Abstract: The present invention provides processes for the preparation of saturated ketone morphinan compounds. In particular, the invention provides processes for the conversion of a morphinan comprising an allyl alcohol ring moiety into a morphinan comprising a saturated ketone ring moiety by an isomerization reaction catalyzed by an inorganic salt of a late transition metal.
    Type: Application
    Filed: April 9, 2010
    Publication date: October 14, 2010
    Applicant: Mallinckrodt Inc.
    Inventors: Peter X. Wang, Tao Jiang, David W. Berberich, Narayanasamy Gurusamy, Catherine K. Jung