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:
Jun. 02, 2026
Filed:
Oct. 11, 2019
Highfield Biopharmaceutical Corporation, HangZhou, CN;
Xiaohui Wei, Shanghai, CN;
Bingqi Jiang, Shanghai, CN;
HighField BioPharmaceutical Corporation, HangZhou, CN;
Abstract
An irinotecan liposome preparation, a preparation method, and use thereof. The irinotecan liposome includes: irinotecan, a liposome carrier, an internal aqueous phase located inside a liposome membrane and an external aqueous phase located outside the liposome membrane, the irinotecan being encapsulated in the internal aqueous phase; a sulfonate gradient exists between the internal aqueous phases inside the liposome membrane and the external aqueous phase outside the liposome membrane. The liposome takes monovalent sulfonate and disulfonate as the internal aqueous phases, encapsulates the irinotecan in the internal aqueous phases of the liposome in the form of insoluble sulfonate or disulfonate, and has a good sustained-release effect.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile