Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads (for pulley blocks B66D3/10)

Filing statistics

CPC B66D 5/00 belongs to the parent subclass B66D, which recorded 19,077 patent applications worldwide between 2013 and 2023. Annual filings grew from 925 in 2013 to 1,759 in 2023 (+90%), peaking at 2,301 applications in 2020. The most active applicants in class B66 are INVENTIO (3,939 applications), OTIS ELEVATOR COMPANY (3,810 applications) and KONE CORPORATION (3,008 applications).

Source: EPO PATSTAT, worldwide filings