GPI coverage and content

You can use Global Patent Index (GPI) to carry out detailed searches in the EPO's worldwide bibliographic (DOCDB), legal event (INPADOC) and full-text data sets, and download or visualise the search results for statistical analysis.

Current content: 157 337 350 patent documents

This week's update (19/07/2024 12:00 CET):

219 431 new documents added

1 247 852 documents amended

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EP 2342010 A2 20110713 - ULTRA-FINE CELLULOSE

Title (en)

ULTRA-FINE CELLULOSE

Title (de)

ULTRAFEINE CELLULOSE

Title (fr)

CELLULOSE ULTRAFINE

Publication

EP 2342010 A2 20110713 (DE)

Application

EP 09741223 A 20091015

Priority

EP 2009007410 W 20091015
DE 102008051359 A 20081015

Abstract (en)

[origin: WO2010043397A2] The invention relates to the use of ultra fine, dry cellulose having a particle diameter of between 20nm and 15µm as an additive for filtration aids. The invention also relates to additional substances measured according to laser-particle analysis methods using Coulter LS 230 equipment.

IPC 8 full level

B01J 20/24 (2006.01); B01J 20/28 (2006.01)

CPC (source: EP)

C08B 1/00 (2013.01); C08L 1/02 (2013.01)

Citation (search report)

See references of WO 2010043397A2

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

Designated extension state (EPC)

AL BA RS

DOCDB simple family (publication)

DE 102008051359 A1 20100422; EP 2342010 A2 20110713; WO 2010043397 A2 20100422; WO 2010043397 A3 20100701

DOCDB simple family (application)

DE 102008051359 A 20081015; EP 09741223 A 20091015; EP 2009007410 W 20091015