- All sections
- B - Performing operations; transporting
- B66B - Elevators; escalators or moving walkways
- B66B 21/08 - Escalators paternoster type, i.e. the escalator being used simultaneously for climbing and descending
Patent holdings for IPC class B66B 21/08
Total number of patents in this class: 1
10-year publication summary
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0
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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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1
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0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
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|---|---|---|
| Otis Elevator Company | 2677 |
1 |
| Other owners | 0 |