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:
Oct. 13, 2026
Filed:
Jan. 15, 2021
Applicant:
Chia Tai Tianqing Pharmaceutical Group Co., Ltd., Lianyungang City, CN;
Inventors:
Wenjun Yao, Shanghai, CN;
Yunfu Luo, Shanghai, CN;
Peng Zhang, Shanghai, CN;
Ting Yao, Shanghai, CN;
Assignee:
Chia Tai Tianqing Pharmaceutical Group Co., Ltd., Lianyungang City, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 471/04 (2006.01);
U.S. Cl.
CPC ...
C07D 471/04 (2013.01); C07B 2200/13 (2013.01);
Abstract
Provided are a crystal of a tricyclic compound as shown in formula (I) or a pharmaceutically acceptable salt thereof and a preparation method therefor, and the use thereof in preparing a drug for treating PDE3- and/or PDE4-related diseases.
Yao, Wenjun. (2026). Crystal of pde3/pde4 dual inhibitor and use thereof (U.S. Patent No. 12760015). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12760015
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile