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:
Feb. 25, 2025
Filed:
Mar. 13, 2020
Applicant:
Transthera Sciences (Nanjing), Inc., Jiangsu, CN;
Inventors:
Zhonghui Wan, Jiangsu, CN;
Lin Li, Jiangsu, CN;
Assignee:
TRANSTHERA SCIENCES (NANJING), INC., Jiangsu, CN;
Attorneys:
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
The present invention falls within the technical field of medicine, and in particular relates to a crystal form of a phosphodiesterase inhibitor as shown in formula (I), a preparation method therefor and the use thereof.