Patent · US Expired

Process for culturing biological material

US4840905A · kind A · utility

13Cited by

12References

13Claims

0Family size

Assignee

Boehringer Mannheim GmbH · DE

Inventors

Michael J. Kearns · Roodepoort, ZA
Michael J. Comer · Bernried, DE

Key dates

Filing date	Oct 7, 1987
Grant date	Jun 20, 1989
Priority date	—
Expiry date	Oct 7, 2007

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC12M27/08
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

A process for culturing biological material capable of multiplication, especially cells securely adhering to microcarriers, employs a bioreactor having a vessel for a culture medium having means for controlling the environmental conditions in the culture medium and a stirring device for the homogeneous distribution of the cells in the culture medium which has a rotary drive and a rotation axle running in the interior of the vessel, wherein the stirring device has at least one flat stirrer blade fixed on to the rotation axle and inclined to the rotation axle.

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