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. 02, 2026
Filed:
Apr. 22, 2024
Chia Tai Tianqing Pharmaceutical Group Co., Ltd., Lianyungang, CN;
Yunfu Luo, Shanghai, CN;
Jianfeng Pan, Shanghai, CN;
Guoli Zhang, Shanghai, CN;
Sheng Su, Shanghai, CN;
Yong Wang, Shanghai, CN;
Shuhui Chen, Shanghai, CN;
CHIA TAI TIANQING PHARMACEUTICAL GROUP CO., LTD., Lianyungang, CN;
Abstract
Provided is a fused tri-cyclic compound as PDE3/PDE4 dual inhibitor, and a use thereof in the preparation of drugs for PDE3/PDE4 associated diseases, particularly in medicinal functions such as chronic obstructive pulmonary disease (COPD). Provided are specifically a compound of formula (I) and a pharmaceutically acceptable salt thereof.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile