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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 0227874 B1 19900926 - TONER FOR DEVELOPING ELECTROSTATIC LATENT IMAGES

Title (en)

TONER FOR DEVELOPING ELECTROSTATIC LATENT IMAGES

Publication

EP 0227874 B1 19900926 (EN)

Application

EP 86100043 A 19860103

Priority

JP 19111784 A 19840912

Abstract (en)

[origin: EP0227874A1] A toner for developing electrostatic latent images which is characterized in that the toner comprises as a charge control agent a zinc complex compound of an aromatic hydroxycarboxylic acid having or not having a substitutent.

IPC 1-7

G03G 9/08

IPC 8 full level

G03G 9/08 (2006.01); G03G 9/097 (2006.01)

CPC (source: EP)

G03G 9/09783 (2013.01)

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI LU NL

DOCDB simple family (publication)

EP 0227874 A1 19870708; EP 0227874 B1 19900926; JP H0260183 B2 19901214; JP S6169073 A 19860409

DOCDB simple family (application)

EP 86100043 A 19860103; JP 19111784 A 19840912