The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 26, 2015
Filed:
Sep. 03, 2009
Applicants:
Peter X. Wang, Clarkson Valley, MO (US);
Gary L. Cantrell, Troy, IL (US);
Robert E. Halvachs, Belleville, IL (US);
Kevin R. Roesch, Ofallon, IL (US);
Henry J. Buehler, St. Louis, MO (US);
Joseph P. Haar, Edwardsville, IL (US);
Inventors:
Peter X. Wang, Clarkson Valley, MO (US);
Gary L. Cantrell, Troy, IL (US);
Robert E. Halvachs, Belleville, IL (US);
Kevin R. Roesch, Ofallon, IL (US);
Henry J. Buehler, St. Louis, MO (US);
Joseph P. Haar, Edwardsville, IL (US);
Assignee:
Mallinckrodt LLC, Hazelwood, MO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 495/00 (2006.01); C07D 307/77 (2006.01); C07D 489/02 (2006.01);
U.S. Cl.
CPC ...
C07D 489/02 (2013.01);
Abstract
An improved process for the N-alkylation of tertiary morphinan alkaloid bases to form the corresponding quaternary morphinan alkaloid derivatives.