Combined filter

US9963668B2 · kind B2 · utility

Assignee

• Sartorius Stedim Biotech GmbH · DE

Inventors

• Oscar-Werner Reif · Hannover, DE
• Gerhard Greller · Oettingen, DE
• Paschalis Nikoloudis · Oettingen, DE
• Ralf Lausch · Oettingen, DE
• Ute Husemann · Göttingen, DE
• Thomas Loewe · Wonder Lake, US
• Thomas Friese · Oettingen, DE
• Thomas Dreher · Oettingen, DE

Key dates

• Filing date: Jul 16, 2013
• Grant date: May 8, 2018
• Expiry date: Feb 24, 2034

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2325/38
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to a device for culturing cells in a bioreactor, the waste-air line of which leading out of the reactor interior comprises a waste-air filter having a sterile-filtration microfilter membrane, wherein at least one prefilter having a hydrophobic filter material is placed upstream of the waste-air filter toward the reactor interior.