Roll bending or shifting

Filing statistics

CPC B21B 2269/00 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