CPC Main Group
B21D 5/00 Bending sheet metal along straight lines, e.g. to form simple curves (B21D11/06 - B21D11/18 take precedence; corrugating sheet metal B21D13/00; as edge treatment B21D19/00)
10 direct subcodes
Child Classifications
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- B21D 5/01 between rams and anvils or abutments
- B21D 5/02 on press brakes without making use of clamping means
- B21D 5/04 on brakes making use of clamping means on one side of the work
- B21D 5/06 by drawing procedure making use of dies or forming-rollers, e.g. making profiles
- B21D 5/14 by passing between rollers (B21D5/06 takes precedence)
- B21D 5/16 Folding; Pleating
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