CPC Subgroup
C22C 1/1015 Full Title
Making non-ferrous alloys (by electrothermic methods C22B4/00; by electrolysis C25C1/24, C25C3/36) > Alloys containing non-metals (C22C1/05, C22C1/08 take precedence)
1 direct subcode
Child Classifications
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Top Applicants
Top 10 applicants by patent filingsfor 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