- All sections
- B - Performing operations; transporting
- B66B - Elevators; escalators 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: 53
10-year publication summary
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2
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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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3
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 43934 |
16 |
| Otis Elevator Company | 2677 |
9 |
| Hitachi, Ltd. | 16452 |
6 |
| Inventio AG | 2314 |
4 |
| MITSUBISHI DENKI KABUSHIKI KAISHA also trading as Mitsubishi Electric Corporation | 1082 |
3 |
| Fujitec Co., Ltd. | 67 |
2 |
| Wittur Holding GmbH | 99 |
2 |
| Kone Oyj | 2000 |
2 |
| Airdri Limited | 15 |
1 |
| Dongnan Elevator Co., Ltd. | 25 |
1 |
| Hitachi Building Systems Co., Ltd. | 45 |
1 |
| Sematic S.p.A | 23 |
1 |
| Vimec S.r.l. | 8 |
1 |
| Astra S.r.l. | 16 |
1 |
| G.A.L. Manufacturing Company LLC | 13 |
1 |
| Hitachi Elevator (China) Co., Ltd. | 3 |
1 |
| EDS Inovasyon Makine ve Otomasyon Ltd. Sti. | 2 |
1 |
| Other owners | 0 |