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:
Feb. 04, 2021
Applicant:
Asahi Kasei Kabushiki Kaisha, Tokyo, JP;
Inventors:
Kohei Yabuuchi, Tokyo, JP;
Yoshiki Miyamoto, Tokyo, JP;
Keisuke Fukumoto, Tokyo, JP;
Toru Katsumata, Tokyo, JP;
Yoshiyuki Nakagawa, Tokyo, JP;
Assignee:
ASAHI KASEI KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08B 37/08 (2006.01); A61K 47/36 (2006.01); A61K 47/61 (2017.01); C07J 9/00 (2006.01);
U.S. Cl.
CPC ...
C08B 37/0072 (2013.01); A61K 47/36 (2013.01); A61K 47/61 (2017.08); C07J 9/00 (2013.01);
Abstract
The present invention provides a hyaluronic acid derivative having a steryl group introduced therein, wherein a ratio Mw/Mn of a weight-average molecular weight Mw to a number-average molecular weight Mn of the hyaluronic acid derivative is 1.11 or more and 10.0 or less.
Yabuuchi, Kohei. (2026). Hyaluronic acid derivative, pharmaceutical composition, and hyaluronic acid derivative-drug complex (U.S. Patent No. 12735513). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12735513
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile