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:
Jul. 27, 2004
Filed:
Feb. 12, 2002
Revital Lifshitz, Herzlia, IL;
Eti Kovalevski-Ishai, Netanya, IL;
Shlomit Wizel, Petah Tiqva, IL;
Sharon Avhar Maydan, Petach Tikva, IL;
Rami Lidor-Hadas, Kfar Saba, IL;
Teva Pharmaceutical Industries Ltd., Petah Tiqva, IL;
Abstract
The present invention provides new crystalline Forms III, IV and V of clopidogrel hydrogensulfate and the amorphous form of clopidogrel hydrogensulfate, as well as their pharmaceutical compositions, and method of treatments with such compositions. The present invention also provides novel processes for preparation of clopidogrel hydrogensulfate Form I, Form III, Form IV, Form V and the amorphous form. The present invention further provides a novel process where the amorphous form is converted to Form I by contacting Form I with an ether.