CPC Main Group Additional Only
B21B 2263/00 Shape of product
Filing statistics
CPC B21B 2263/00 belongs to the parent subclass B21B, which recorded 40,295 patent applications worldwide between 2013 and 2023. Annual filings grew from 2,451 in 2013 to 4,508 in 2023 (+84%), peaking at 4,702 applications in 2020. The most active applicants in class B21 are JFE STEEL (2,667 applications), NIPPON STEEL CORPORATION (2,049 applications) and POSCO (POHANG IRON AND STEEL COMPANY) (1,967 applications).
Source: EPO PATSTAT, worldwide filings
6 direct subcodes
Child Classifications
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- B21B 2263/02 Profile, e.g. of plate, hot strip, sections
- B21B 2263/04 Flatness
- B21B 2263/10 Lateral spread defects
- B21B 2263/16 Alligatoring
- B21B 2263/20 End shape; fish tail; tongue
- B21B 2263/30 Shape in top view
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