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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.:

US 12616686 B1

PDFFull Text
Date of Patent:
May. 05, 2026

Filed:

Jul. 18, 2023

Donepezil oral films

Applicant:

Xiamen Lp Pharmaceutical Co., Ltd., Xiamen, CN;

Inventors:

Zhoue Gao, Xiamen, CN;

Jing Yin, Xiamen, CN;

Zhichao Lin, Xiamen, CN;

Yanyan Wang, Xiamen, CN;

Avinash Singh, Xiamen, CN;

Rongbin Ling, Xiamen, CN;

Assignee:

XIAMEN LP PHARMACEUTICAL CO., LTD., Xiamen, CN;

Attorneys:

PERKINS COIE LLP

Viola T. Kung

Primary Examiner:

Melissa S Mercier

Int. Cl.
CPC ...
A61K 31/445 (2006.01); A61K 9/00 (2006.01); A61K 47/02 (2006.01); A61K 47/10 (2017.01); A61K 47/18 (2017.01); A61K 47/20 (2006.01); A61K 47/26 (2006.01); A61K 47/32 (2006.01); A61K 47/38 (2006.01);
U.S. Cl.
CPC ...
A61K 31/445 (2013.01); A61K 9/006 (2013.01); A61K 47/02 (2013.01); A61K 47/10 (2013.01); A61K 47/183 (2013.01); A61K 47/20 (2013.01); A61K 47/26 (2013.01); A61K 47/32 (2013.01); A61K 47/38 (2013.01);
Abstract

The present invention provides an oral dispersible film for donepezil hydrochloride. The film is a bilayer structure containing a drug layer containing 45-75% w/w donepezil hydrochloride and a backing layer without donepezil hydrochloride. The present oral film retains donepezil hydrochloride in a crystal form and minimizes impurity generation. The oral film contains a selected hydrophobic material to improve the drug stability and minimize the drug solubility.

Find Patent Forward Citations

Gao, Zhoue. (2026). Donepezil oral films (U.S. Patent No. 12616686). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12616686

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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