CPC Main Group
B21B 35/00 Drives for metal-rolling mills
6 direct subcodes
Child Classifications
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- B21B 35/02 for continuously-operating mills (B21B35/10, B21B35/12 take precedence)
- B21B 35/06 for non-continuously-operating mills or for single stands (B21B35/10, B21B35/12 take precedence)
- B21B 35/10 Driving arrangements for rolls which have only a low-power drive; Driving arrangements for rolls which receive power from the shaft of another roll
- B21B 35/12 Toothed-wheel gearings specially adapted for metal-rolling mills; Housings or mountings therefor
- B21B 35/14 Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling mills (couplings or shafts in general F16)
Top Applicants
Top 10 applicants by patent filingsfor class B21, 2013–2023, worldwide · Source: EPO PATSTAT
- JFE STEEL JP 2,667
- NIPPON STEEL CORPORATION JP 2,049
- POSCO (POHANG IRON AND STEEL COMPANY) KR 1,967
- NSSMC (NIPPON STEEL & SUMITOMO METAL) JP 1,800
- SMS GROUP DE 1,538
- JFE STEEL 1,150
- ARCELORMITTAL LU 1,142
- BAOSHAN IRON & STEEL COMPANY 821
- HYUNDAI STEEL COMPANY KR 808
- THYSSENKRUPP STEEL EUROPE DE 660