Global Patent Index - EP 1019179 A1

EP 1019179 A1 2000-07-19 - GELATINE MEMBRANE FILTERS AND METHOD FOR PRODUCING THE SAME

Title (en)

GELATINE MEMBRANE FILTERS AND METHOD FOR PRODUCING THE SAME

Title (de)

GELATINEMEMBRANFILETER UND VERFAHREN ZU IHRER HERSTELLUNG

Title (fr)

FILTRES A DIAPHRAGME EN GELATINE ET LEUR PROCEDE DE PRODUCTION

Publication

EP 1019179 A1 (DE)

Application

EP 98955551 A

Priority

  • DE 19750215 A
  • EP 9807118 W

Abstract (en)

[origin: DE19750215C1] The invention relates to gelatine membrane filters for collecting micro-organisms from gases and obtaining a higher proportion of micro-organisms capable of living on said filters, and to a method for producing the same. To this end, the inventive gelatine membrane filters contain osmoprotective substances which are added either to the membrane attraction solution or to a first setting bath. The inventive gelatine membrane filters are used in the pharmaceutical, biotechnology and food industries, in environmental protection, waste management and in medical devices for determining the bacterial count in media. They can be used in conjunction with an apparatus for collecting airborne bacteria for example, for collecting bacteria, viruses, yeast and fungi in order to determine the concentration of these micro-organisms in rooms.

IPC 1-7 (main, further and additional classification)

B01D 71/74

IPC 8 full level (invention and additional information)

B01D 67/00 (2006.01); B01D 69/00 (2006.01); B01D 69/14 (2006.01); B01D 71/74 (2006.01); C12M 1/26 (2006.01); G01N 1/22 (2006.01)

CPC (invention and additional information)

G01N 1/2205 (2013.01); B01D 69/141 (2013.01); B01D 71/74 (2013.01); G01N 2001/2223 (2013.01)

Citation (search report)

See references of WO 9925465A1

Designated contracting state (EPC)

FR GB IT

EPO simple patent family

DE 19750215 C1 19990204; EP 1019179 A1 20000719; JP 2001523549 A 20011127; WO 9925465 A1 19990527

INPADOC legal status


2004-01-21 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030624

2000-07-19 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000309

2000-07-19 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): FR GB IT