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, 2018
Filed:
Nov. 12, 2015
Applicant:
Jiangsu Tasly Diyi Pharmaceutical Co., Ltd., Jiangsu, CN;
Inventors:
Wenzheng Liu, Jiangsu, CN;
Guocheng Wang, Jiangsu, CN;
Qingwei Hou, Jiangsu, CN;
Hongguang Meng, Jiangsu, CN;
Assignee:
Jiangsu Tasly Diyi Pharmaceutical Co., Ltd., Jiangsu, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 401/04 (2006.01);
U.S. Cl.
CPC ...
C07D 401/04 (2013.01); C07B 2200/13 (2013.01);
Abstract
Provided are revaprazan hydrochloride polymorphs and a preparation method thereof. The method comprises a step of dissolving revaprazan hydrochloride in ethanol or aqueous solutions of ethanol having different proportions to perform recrystallization.