Patent · US Active

Crossflow filtration unit for continuous diafiltration

US11612861B2 · kind B2 · utility

1Cited by

3References

21Claims

0Family size

Assignee

Sartorius Stedim Biotech GmbH · DE

Inventors

Martin Leuthold · Oettingen, DE
Ulrich Grummert · Witzenhausen, DE
Peter Schmidt · Bärnau, DE

Key dates

Filing date	Oct 3, 2018
Grant date	Mar 28, 2023
Priority date	—
Expiry date	Jan 14, 2039

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2319/06
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A crossflow filtration unit for continuous diafiltration of a feed fluid for obtaining a retentate and a permeate, a corresponding method for diafiltration and the use of the crossflow filtration unit are provided. The crossflow filtration unit includes a diafiltration channel, a flat first filter material, a retentate channel, a flat second filter material, and a permeate collection channel, arranged such that the flat first filter material delimits the diafiltration channel and the retentate channel from one another, and the flat second filter material delimits the retentate channel and the permeate collection channel from one another. The diafiltration channel is fluidly connected to at least one inlet for the diafiltration medium, the retentate channel is fluidly connected to at least one inlet for the feed fluid and to at least one outlet for the retentate. The permeate collection channel is fluidly connected to at least one outlet for the permeate.

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