Patents by Inventor Jeffrey Thomas Sterbenz

Jeffrey Thomas Sterbenz 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).

  • Process
    Patent number: 6794508
    Abstract: An improved process for preparing steriods, such as 3-oxo-4-azasteroids, is described. Compounds of this type are known to be useful in the preparation of compounds having 5a-reductase inhibitor activity. The process comprises the hydrogenation of the corresponding steroid alkene in the presence of ammonium acetate, ammonium formate, and/or ammonium propionate and an appropriate catalyst.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: September 21, 2004
    Assignee: SmithKline Beecham Corporation
    Inventors: Roman Davis, Alan Millar, Jeffrey Thomas Sterbenz
  • Process
    Publication number: 20040049042
    Abstract: An improved process for preparing steriods, such as 3-oxo-4-azasteroids, is described. Compounds of this type are known to be useful in the preparation of compounds having 5a-reductase inhibitor activity. The process comprises the hydrogenation of the corresponding steroid alkene in the presence of ammonium acetate, ammonium formate, and/or ammonium propionate and an appropriate catalyst.
    Type: Application
    Filed: May 5, 2003
    Publication date: March 11, 2004
    Inventors: Roman Davis, Alan Millar, Jeffrey Thomas Sterbenz