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. 15, 2025
Filed:
Jan. 31, 2020
Chia Tai Tianqing Pharmaceutical Group Co., Ltd., Jiangsu, CN;
Xiquan Zhang, Lianyungang, CN;
Shanchun Wang, Lianyungang, CN;
Wenjun Geng, Lianyungang, CN;
Yanlong Liu, Lianyungang, CN;
Huihui Zhang, Lianyungang, CN;
Fei Liu, Lianyungang, CN;
Shanliang Zhu, Lianyungang, CN;
Xinlu Li, Lianyungang, CN;
Rui Zhao, Lianyungang, CN;
Hongmei Gu, Lianyungang, CN;
CHIA TAI TIANQING PHARMACEUTICAL GROUP CO., LTD., Lianyungang, CN;
Abstract
The present application relates to the field of medicine, and relates to crystals of quinoline derivatives, and in particular, to crystals of a quinoline derivative anhydride and a solvate, as well as a method for preparing the crystals, pharmaceutical compositions containing the crystals, and a use thereof in the field of medicine. The present application further provides a preparation method therefor, which has a high yield, has mild crystallization conditions, is suitable for industrial production, and may better meet the needs of the pharmaceutical industry.