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Filing statistics

CPC B28B 15/00 belongs to the parent subclass B28B, which recorded 57,301 patent applications worldwide between 2013 and 2023. Annual filings grew from 2,365 in 2013 to 5,105 in 2023 (+116%), peaking at 7,697 applications in 2020. The most active applicants in class B28 are DISCO CORPORATION (1,471 applications), HILTI (575 applications) and CORNING (544 applications).

Source: EPO PATSTAT, worldwide filings