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. 11, 2022
Filed:
Feb. 18, 2020
Applicant:
Guangdong Raynovent Biotech Co., Ltd., Guangdong, CN;
Inventors:
Lingyun Wu, Shanghai, CN;
Chaofeng Long, Shilong Town Dongguan, CN;
Peng Zhang, Shanghai, CN;
Xiaoxin Chen, Shilong Town Dongguan, CN;
Li Zhang, Shanghai, CN;
Zhuowei Liu, Shilong Town Dongguan, CN;
Jian Li, Shanghai, CN;
Shuhui Chen, Shanghai, CN;
Assignee:
GUANGDONG RAYNOVENT BIOTECH CO., LTD., Guangdong, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 31/522 (2005.12); A61K 31/52 (2005.12); C07D 241/10 (2005.12); C07D 261/06 (2005.12); C07D 277/20 (2005.12); C07D 473/30 (2005.12);
U.S. Cl.
CPC ...
A61K 31/522 (2012.12); A61K 31/52 (2012.12); C07D 241/10 (2012.12); C07D 261/06 (2012.12); C07D 277/20 (2012.12); C07D 473/30 (2012.12);
Abstract
Hydroxyl purine compounds represented by formula (I), tautomers or pharmaceutically acceptable salts thereof, and applications thereof as PDE2 or TNF-α inhibitors.