B21C 47/06 with loaded rollers, bolts, or equivalent means holding the material on the reel or drum
Introduced: September 1968
Full Title
Full titles differ between systems:
Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only > Winding-up or coiling > on or in reels or drums, without using a moving guide > with loaded rollers, bolts, or equivalent means holding the material on the reel or drum
Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only (coiling wire into particular forms B21F3/00) > Winding-up or coiling > on or in reels or drums, without using a moving guide > with loaded rollers, bolts, or equivalent means holding the material on the reel or drum
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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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