Patent · US Active

Powder injection of the donepezil semi palmoxiric acid salt, composition containing same and preparation method therefor

US11197850B2 · kind B2 · utility

1Cited by

1References

2Claims

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Assignees

SHANGHAI SYNERGY PHARMACEUTICAL SCIENCES CO., LTD · CN
ZHEJIANG HUAHAI PHARMACEUTICAL CO., LTD. · CN

Inventors

Jian Ge · Hubei, CN
Yunfei Li · Fremont, US
Lihong Lin · Zhejiang, CN
Dengxue Sun · Zhejiang, CN
Jiamiao Wang · Shanghai, CN
Yijin Wang · Dongguan, CN
Zhiyun Wang · Zhejiang, CN

Key dates

Filing date	Feb 13, 2018
Grant date	Dec 14, 2021
Priority date	—
Expiry date	Feb 16, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D211/32
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A powder injection of a donepezil semi palmoxiric acid salt, a composition containing the same and a preparation method therefor. The powder injection contains donepezil semi palmoxiric acid salt crystals, and the average grain size of the crystals ranges from 0.5 μm to 100 μm.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.