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:
Nov. 24, 2009
Filed:
Mar. 18, 2005
Applicants:
Claude Singer, Kafar Saba, IL;
Anita Liberman, Tel-Aviv, IL;
Irena Veinberg, Rehovot, IL;
Nina Finkelstein, Herzliya, IL;
Tamar Nidam, Yehud, IL;
Inventors:
Claude Singer, Kafar Saba, IL;
Anita Liberman, Tel-Aviv, IL;
Irena Veinberg, Rehovot, IL;
Nina Finkelstein, Herzliya, IL;
Tamar Nidam, Yehud, IL;
Assignee:
Teva Pharmaceutical Industries Ltd., Petah Tiqva, IL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 401/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a method for preparing a substantially pure lansoprazole containing less than about 0.2% (wt/wt) impurities including sulfone/sulfide derivatives. The present invention also provides a process for recrystallizing lansoprazole to obtain a lansoprazole containing less than about 0.1% (wt/wt) water.