- All sections
- B - Performing operationstransporting
- B66B - Elevatorsescalators or moving walkways
- B66B 1/22 - Control systems without regulation, i.e. without retroactive action electric with devices, e.g. push-buttons, for indirect control of movements with means for taking account of delayed calls
Patent holdings for IPC class B66B 1/22
Total number of patents in this class: 4
10-year publication summary
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0
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0
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0
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2
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1
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1
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0
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0
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0
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Otis Elevator Company | 2693 |
3 |
| Kone Oyj | 2150 |
1 |
| Other owners | 0 |