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: 158 817 061 patent documents

This week's update (27/09/2024 12:00 CET):

138 866 new documents added

722 000 documents amended

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EP 0608325 A4 19961030 - COAL CLEANING PROCESS.

Title (en)

COAL CLEANING PROCESS.

Publication

EP 0608325 A4 19961030 (EN)

Application

EP 92921790 A 19920930

Priority

US 9208347 W 19920930
US 77586091 A 19911015

IPC 1-7

B02C 23/14; B03B 5/34; B03B 9/00; B01D 37/00; C10L 5/14; C01G 49/02

IPC 8 full level

B01D 37/00 (2006.01); B02C 23/14 (2006.01); B03B 5/34 (2006.01); B03B 9/00 (2006.01); C01G 49/02 (2006.01); C10L 5/14 (2006.01)

Citation (search report)

[X] EP 0183479 A2 19860604 - ELECTRIC POWER DEV CO [JP], et al
See references of WO 9307967A1

Designated contracting state (EPC)

DE ES GB IT

DOCDB simple family (publication)

AU 2863492 A 19930521; AU 662568 B2 19950907; EP 0608325 A1 19940803; EP 0608325 A4 19961030; PL 172524 B1 19971031

DOCDB simple family (application)

AU 2863492 A 19920930; EP 92921790 A 19920930; PL 30345592 A 19920930