Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor (specially designed for optical surfaces B24B13/00, for seat surfaces B24B15/00)

Filing statistics

CPC B24B 11/00 belongs to the parent subclass B24B, which recorded 132,872 patent applications worldwide between 2013 and 2023. Annual filings grew from 5,708 in 2013 to 13,782 in 2023 (+141%), peaking at 18,119 applications in 2020. The most active applicants in class B24 are DISCO CORPORATION (2,092 applications), APPLIED MATERIALS (1,813 applications) and EBARA CORPORATION (1,804 applications).

Source: EPO PATSTAT, worldwide filings