- 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: 50
10-year publication summary
|
5
|
8
|
5
|
6
|
6
|
4
|
5
|
5
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 47722 |
15 |
| Otis Elevator Company | 2694 |
10 |
| Hitachi, Ltd. | 15944 |
6 |
| Inventio AG | 2390 |
3 |
| Fujitec Co., Ltd. | 71 |
2 |
| Wittur Holding GmbH | 135 |
2 |
| Kone Oyj | 2131 |
2 |
| Airdri Limited | 17 |
1 |
| Dongnan Elevator Co., Ltd. | 25 |
1 |
| Hitachi Building Systems Co., Ltd. | 52 |
1 |
| Sematic S.p.A | 22 |
1 |
| Vimec S.r.l. | 7 |
1 |
| Astra S.r.l. | 15 |
1 |
| G.A.L. Manufacturing Company LLC | 15 |
1 |
| Hitachi Elevator (China) Co., Ltd. | 3 |
1 |
| EDS Inovasyon Makine ve Otomasyon Ltd. Sti. | 2 |
1 |
| Mitsubishi Electric Building Solutions Corporation | 402 |
1 |
| Other owners | 0 |