containing organic acids

Introduced: July 1974

Full Title

Electrolytic coating by surface reaction, i.e. forming conversion layers > Anodisation > of aluminium or alloys based thereon > characterised by the electrolytes used > containing organic acids

No child classifications to compare. This is a leaf node in both IPC and CPC.

Top Applicants

Top Applicants (IPC)

Class C25,2013–2023, worldwide · Source: EPO PATSTAT

CHINESE ACADEMY OF SCIENCES 1,797
EBARA CORPORATION JP 729
CENTRAL SOUTH UNIVERSITY 650
INDUSTRIE DE NORA IT 641
ROBERT BOSCH DE 600
JFE STEEL JP 593
KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 553
SIEMENS DE 536
CEA (COMMISSARIAT A L'ENERGIE ATOMIQUE) FR 525
JX NIPPON MINING & METALS CORPORATION 499

Top Applicants (CPC)

Class C25,2013–2023, worldwide · Source: EPO PATSTAT

CHINESE ACADEMY OF SCIENCES 1,393
JFE STEEL JP 914
EBARA CORPORATION JP 738
INDUSTRIE DE NORA IT 674
JX NIPPON MINING & METALS CORPORATION JP 652
NIPPON STEEL CORPORATION JP 633
CEA (COMMISSARIAT A L'ENERGIE ATOMIQUE) FR 630
ROBERT BOSCH DE 626
SIEMENS DE 587
ATOTECH DEUTSCHLAND DE 561