Working screws, bolt heads, or nuts in conjunction with thread cutting, e.g. slotting screw heads or shanks, removing burrs from screw heads or shanks; Finishing, e.g. polishing, any screw-thread

Filing statistics

CPC B23G 9/00 belongs to the parent subclass B23G, which recorded 5,497 patent applications worldwide between 2013 and 2023. Annual filings grew from 295 in 2013 to 416 in 2023 (+41%), peaking at 689 applications in 2020. The most active applicants in class B23 are ITW (ILLINOIS TOOL WORKS) (3,642 applications), DISCO CORPORATION (3,316 applications) and FANUC (3,111 applications).

Source: EPO PATSTAT, worldwide filings