DIFF Main Group
B21D 7/00 Bending rods, profiles, or tubes (B21D11/02 - B21D11/18 take precedence; using mandrels or the like B21D9/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Bending rods, profiles, or tubes
CPC: Bending rods, profiles, or tubes (B21D11/02 - B21D11/18 take precedence; using mandrels or the like B21D9/00)
Full Title
Full titles differ between systems:
IPC:
Bending rods, profiles, or tubes
CPC:
Bending rods, profiles, or tubes (B21D11/02 - B21D11/18 take precedence; using mandrels or the like B21D9/00)
IPC and CPC are identically structured here. All 8 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- B21D 7/02 over a stationary forming member; by use of a swinging forming member or abutment +1 CPC IPC+CPC Available in IPC and CPC
- B21D 7/04 over a movably-arranged forming menber (B21D7/02 takes precedence) IPC+CPC Available in IPC and CPC
- B21D 7/06 in press brakes or between rams and anvils or abutments; Pliers with forming dies +2 CPC IPC+CPC Available in IPC and CPC
- B21D 7/08 by passing between rollers or through a curved die +1 CPC IPC+CPC Available in IPC and CPC
- B21D 7/10 by abutting members and flexible bending means, e.g. with chains, ropes IPC+CPC Available in IPC and CPC
- B21D 7/16 Auxiliary equipment, e.g. for heating or cooling of bends +3 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class B21,2013–2023, worldwide · Source: EPO PATSTAT
- JFE STEEL 2,318
- JFE STEEL JP 2,294
- POSCO (POHANG IRON AND STEEL COMPANY) KR 2,083
- NIPPON STEEL CORPORATION JP 1,650
- NSSMC (NIPPON STEEL & SUMITOMO METAL) JP 1,631
- SMS GROUP DE 1,472
- BAOSHAN IRON & STEEL COMPANY 1,181
- SGCC(STATE GRID CORPORATION OF CHINA) 1,079
- ANHUI JIANGHUAI AUTOMOBILE 984
- HYUNDAI STEEL COMPANY KR 980
Top Applicants (CPC)
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