Patent · US Active

Depth filter layer with inorganic layer double hydroxide

US9333481B2 · kind B2 · utility

1Cited by

2References

28Claims

0Family size

Assignee

Sartorius Stedim Biotech GmbH · DE

Inventors

Katrin Koehler · Oettingen, DE
Axel Thiefes · Hardegsen, DE
Klaus Tarrach · Helsingborg, SE

Key dates

Filing date	Aug 11, 2009
Grant date	May 10, 2016
Priority date	—
Expiry date	Mar 13, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2220/4825
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to a depth filter layer with inorganic layer double hydroxide, a method for production thereof, a filtration device containing this, a method for the separation of at least one contaminant from at least one target product in a liquid medium by means of at least one upstream depth filter layer and the use of the depth filter layer for removal of contaminants. The depth filter layer selectively retains contaminants such as nucleic acids, while target proteins of biotechnological processes are transmissible into the filtrate.

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