B66B 29/00 Safety devices of escalators or moving walkways (walkways of variable speed type B66B21/12; handrails of variable speed type B66B23/26)
Introduced: January 1985
Title
Titles differ between systems:
IPC: Safety devices of escalators or moving walkways
CPC: Safety devices of escalators or moving walkways (walkways of variable speed type B66B21/12; handrails of variable speed type B66B23/26)
Full Title
Full titles differ between systems:
Safety devices of escalators or moving walkways
Safety devices of escalators or moving walkways (walkways of variable speed type B66B21/12; handrails of variable speed type B66B23/26)
Additional Content IPC
Moving walkways of variable speed type Balustrades handrails of variable speed type
Of 3 combined children, 2 exist in both systems.
1 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1985.
Child Classifications
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- B66B 29/02 responsive to, or preventing, jamming by foreign objects since 1985 IPC+CPC Available in IPC and CPC
- B66B 29/08 Means to facilitate passenger entry or exit (moving handrails B66B23/24) since 1985 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
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
Top Applicants (CPC)
Class B66,2013–2023, worldwide · Source: EPO PATSTAT
- INVENTIO CH 3,939
- OTIS ELEVATOR COMPANY US 3,810
- KONE CORPORATION FI 3,008
- MITSUBISHI ELECTRIC CORPORATION JP 2,333
- MITSUBISHI ELECTRIC CORPORATION 1,254
- HITACHI 1,195
- OTIS ELEVATOR COMPANY 1,065
- SGCC(STATE GRID CORPORATION OF CHINA) 961
- INVENTIO 828
- CROWN EQUIPMENT CORPORATION US 828