Patent · US Active

Method for extracting herbal medicine

US11219652B2 · kind B2 · utility

1Cited by

10References

3Claims

0Family size

Assignee

SHAANXI PANLONG PHARMACEUTICAL GROUP LIMITED BY SHARE LTD. · CN

Inventors

Xiaolin Xie · Xi'an, CN
Dezhu Zhang · Xi'an, CN
Jianguo Meng · Xi'an, CN
Yu Wang · Xi'an, CN
Xuhua Zhou · Xi'an, CN
Zhong Meng · Seattle, US
Nan Hui · Xi'an, CN
Juan Li · Nanhu, CN

Key dates

Filing date	Aug 14, 2020
Grant date	Jan 11, 2022
Priority date	—
Expiry date	Aug 27, 2040

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D9/0054
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method for extracting herbal medicine includes: step one, spray extraction; step two, pressure filtration and concentration; step three, spray and countercurrent precipitation; and step four, concentrating reduced pressure and drying.

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