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:
Jun. 26, 2012
Filed:
Oct. 05, 2011
Applicants:
Ludek Ridvan, Prague, CS;
Kamal Jarrah, Prague, CS;
Josef Cinibulk, Prague, CS;
Monika Zatopkova, Ostrava, CS;
Lukas Placek, Moravsky Kocov, CS;
Inventors:
Ludek Ridvan, Prague, CS;
Kamal Jarrah, Prague, CS;
Josef Cinibulk, Prague, CS;
Monika Zatopkova, Ostrava, CS;
Lukas Placek, Moravsky Kocov, CS;
Assignee:
Zentiva k.s., Praha, CZ;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 333/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for the preparation of a duloxetine hydrochloride salt from a duloxetine base, comprising the steps of: reacting duloxetine base with concentrated hydrochloric acid in ethylmethylketone; and crystallizing duloxetine hydrochloride salt from said concentrated hydrochloric acid in ethylmethylketone.