- All sections
- B - Performing operationstransporting
- B66B - Elevatorsescalators or moving walkways
- B66B 13/18 - Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position without manually-operable devices for completing locking or unlocking of doors
Patent holdings for IPC class B66B 13/18
Total number of patents in this class: 52
10-year publication summary
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3
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5
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8
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5
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6
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6
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4
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5
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5
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 44904 |
16 |
| Otis Elevator Company | 2649 |
9 |
| Hitachi, Ltd. | 15239 |
6 |
| Inventio AG | 2364 |
4 |
| Fujitec Co., Ltd. | 69 |
2 |
| Wittur Holding GmbH | 103 |
2 |
| Kone Oyj | 2047 |
2 |
| Airdri Limited | 16 |
1 |
| Dongnan Elevator Co., Ltd. | 27 |
1 |
| Hitachi Building Systems Co., Ltd. | 49 |
1 |
| Sematic S.p.A | 22 |
1 |
| Vimec S.r.l. | 8 |
1 |
| Astra S.r.l. | 16 |
1 |
| G.A.L. Manufacturing Company LLC | 14 |
1 |
| MITSUBISHI DENKI KABUSHIKI KAISHA also trading as Mitsubishi Electric Corporation | 611 |
1 |
| Hitachi Elevator (China) Co., Ltd. | 3 |
1 |
| EDS Inovasyon Makine ve Otomasyon Ltd. Sti. | 2 |
1 |
| Mitsubishi Electric Building Solutions Corporation | 306 |
1 |
| Other owners | 0 |