DIFF Subgroup
C22B 9/16 Remelting metals (liquating C22B9/02)
Introduced: January 1980
Title
Titles differ between systems:
IPC: Remelting metals
CPC: Remelting metals (liquating C22B9/02)
Full Title
Full titles differ between systems:
IPC:
General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals > Remelting metals
CPC:
General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals > Remelting metals (liquating C22B9/02)
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
IPC defines codes here since 1980.
Child Classifications
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- C22B 9/22 with heating by wave energy or particle radiation since 1980 +3 CPC IPC+CPC Available in 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