CPC Main Group
B21B 38/00 Methods or devices for measuring, specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
10 direct subcodes
Child Classifications
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- B21B 38/02 for measuring flatness or profile of strips
- B21B 38/04 for measuring thickness, width, diameter or other transverse dimensions of the product
- B21B 38/06 for measuring tension or compression
- B21B 38/08 for measuring roll-force
- B21B 38/10 for measuring roll-gap, e.g. pass indicators
- B21B 38/12 for measuring roll camber
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