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. 05, 2026
Filed:
Apr. 21, 2022
Applicant:
Tonghua Dongbao Pharmaceutical Co., Ltd., Jilin, CN;
Inventors:
Yang Zhang, Shanghai, CN;
Wentao Wu, Shanghai, CN;
Zhixiang Li, Shanghai, CN;
Wenyuan Zhu, Shanghai, CN;
Assignee:
TONGHUA DONGBAO PHARMACEUTICAL CO., LTD., Jilin, CN;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 333/72 (2006.01); A61K 31/381 (2006.01);
U.S. Cl.
CPC ...
C07D 333/72 (2013.01); A61K 31/381 (2013.01);
Abstract
Provided are a crystal form of a compound represented by formula (I) and a preparation method therefor.