Oximes

Introduced: January 1990

Full Title

Full titles differ between systems:

IPC:

Extraction of metal compounds from ores or concentrates by wet processes > Treatment or purification of solutions, e.g. obtained by leaching > by liquid-liquid extraction using organic compounds > Oximes

CPC:

Extraction of metal compounds from ores or concentrates by wet processes > Treatment or purification of solutions, e.g. obtained by leaching (C22B3/18 takes precedence) > by liquid-liquid extraction using organic compounds > Oximes

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

Top Applicants

Top Applicants (IPC)

Class C22,2013–2023, worldwide · Source: EPO PATSTAT

JFE STEEL JP 7,152
NIPPON STEEL CORPORATION JP 5,416
POSCO (POHANG IRON AND STEEL COMPANY) KR 4,530
JFE STEEL 3,986
CENTRAL SOUTH UNIVERSITY 3,086
NSSMC (NIPPON STEEL & SUMITOMO METAL) JP 2,843
CHINESE ACADEMY OF SCIENCES 2,702
ARCELORMITTAL LU 2,124
NSSMC (NIPPON STEEL & SUMITOMO METAL) 2,075
KOBE STEEL JP 1,891

Top Applicants (CPC)

Class C22,2013–2023, worldwide · Source: EPO PATSTAT

JFE STEEL JP 7,620
NIPPON STEEL CORPORATION JP 5,769
POSCO (POHANG IRON AND STEEL COMPANY) KR 4,523
JFE STEEL 3,080
NSSMC (NIPPON STEEL & SUMITOMO METAL) JP 2,999
ARCELORMITTAL LU 2,962
CENTRAL SOUTH UNIVERSITY 2,431
KOBE STEEL JP 2,100
CHINESE ACADEMY OF SCIENCES 2,052
MITSUBISHI MATERIALS CORPORATION JP 1,405