DIFF Subgroup
C22C 1/12 by processing in a semi-solid state, e.g. holding the alloy in the solid-liquid phase
Introduced: January 2023
Full Title
Full titles differ between systems:
IPC:
Making non-ferrous alloys > by processing in a semi-solid state, e.g. holding the alloy in the solid-liquid phase
CPC:
Making non-ferrous alloys (by electrothermic methods C22B4/00; by electrolysis C25C1/24, C25C3/36) > by processing in a semi-solid state, e.g. holding the alloy in the solid-liquid phase
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