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:
Sep. 15, 2026
Filed:
Jan. 18, 2023
Applicant:
National Research Institute for Family Planning, Beijing, CN;
Inventors:
Assignee:
NATIONAL RESEARCH INSTITUTE FOR FAMILY PLANNING, Beijing, CN;
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/16 (2006.01); A61K 31/567 (2006.01);
U.S. Cl.
CPC ...
A61K 31/567 (2013.01); A61K 9/1652 (2013.01);
Abstract
Disclosed are preparation for an ethinylestradiol-cyclodextrin complex and use thereof. The ethinylestradiol-cyclodextrin complex utilizes the properties of cyclodextrin that the inner cavity is hydrophobic and the outer surface is hydrophilic to increase the water solubility of the ethinylestradiol-cyclodextrin complex that is also an ethinylestradiol drug, so that the solubility of ethinylestradiol is greatly increased and the bioavailability of water-insoluble ethinylestradiol is improved, thereby providing the possibility for changing the administration mode and homogeneous injection of ethinylestradiol.