Applications of checking, fault-correcting, or safety devices in elevators

Introduced: September 1968

Title

Titles differ between systems:

IPC: Applications of checking, fault-correcting or safety devices in elevators

CPC: Applications of checking, fault-correcting, or safety devices in elevators

Full titles differ between systems:

IPC:

Applications of checking, fault-correcting or safety devices in elevators

CPC:

Applications of checking, fault-correcting, or safety devices in elevators

CPC subdivides this area 3x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

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B66B 5/0006 +3 CPC CPC only CPC only
B66B 5/0043 +1 CPC CPC only CPC only
B66B 5/0087 +1 CPC CPC only CPC only
B66B 5/02 responsive to abnormal operating conditions +3 CPC IPC+CPC Available in IPC and CPC
B66B 5/28 Buffer-stops for cars, cages, or skips +3 CPC IPC+CPC Available in IPC and CPC

Class B66,2013–2023, worldwide · Source: EPO PATSTAT

Class B66,2013–2023, worldwide · Source: EPO PATSTAT