Portable or mobile lifting or hauling appliances

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:: PERFORMING OPERATIONS; TRANSPORTING
Class:: HOISTING; LIFTING; HAULING
Subclass:: CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS

Filing statistics

IPC B66D 3/00 belongs to the parent subclass B66D, which recorded 48,091 patent applications worldwide between 2013 and 2023. Annual filings grew from 2,533 in 2013 to 5,601 in 2023 (+121%), peaking at 6,453 applications in 2020. The most active applicants in class B66 are INVENTIO (3,843 applications), OTIS ELEVATOR COMPANY (3,709 applications) and SGCC(STATE GRID CORPORATION OF CHINA) (2,987 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

portable or mobile HAULING -deviceshoistsTACKLE for hauling or hoisting

4 direct subcodes

Child Classifications

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B66D 3/02 Manually-operated, e.g. lever-actuated, devices operating on ropes, cables, or chains for hauling in a mainly horizontal direction
B66D 3/04 Pulley blocks or like devices in which force is applied to a rope, cable or chain, which passes over one or more pulleys, e.g. to obtain mechanical advantage
B66D 3/12 Chain or like hand-operated tackles with or without power-transmission gearing between operating member and lifting rope, chain, or cable
B66D 3/18 Power-operated hoists

Top Applicants

Top 10 applicants by patent filingsfor class B66, 2013–2023, worldwide · Source: EPO PATSTAT

INVENTIO CH 3,843
OTIS ELEVATOR COMPANY US 3,709
SGCC(STATE GRID CORPORATION OF CHINA) 2,987
KONE CORPORATION FI 2,922
TOSHIBA ELEVATOR COMPANY 2,922
HITACHI 2,321
MITSUBISHI ELECTRIC CORPORATION JP 2,287
MITSUBISHI ELECTRIC CORPORATION 1,870
HITACHI BUILDING SYSTEMS COMPANY 1,700
ANHUI HELI COMPANY 1,325