- All sections
- B - Performing operationstransporting
- B66B - Elevatorsescalators or moving walkways
- B66B 13/12 - Arrangements for effecting simultaneous opening or closing of cage and landing doors
Patent holdings for IPC class B66B 13/12
Total number of patents in this class: 131
10-year publication summary
|
13
|
10
|
8
|
13
|
16
|
9
|
4
|
8
|
9
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Otis Elevator Company | 2659 |
42 |
| Inventio AG | 2380 |
24 |
| Mitsubishi Electric Corporation | 46160 |
15 |
| Fujitec Co., Ltd. | 69 |
6 |
| Kone Oyj | 2093 |
6 |
| Wittur Holding GmbH | 114 |
5 |
| Hitachi, Ltd. | 15499 |
4 |
| ThyssenKrupp Elevator AG | 209 |
4 |
| Sematic S.p.A | 22 |
2 |
| ThyssenKrupp AG | 3290 |
2 |
| G.A.L. Manufacturing Company LLC | 15 |
2 |
| Fge Elettronica S.r.l. | 2 |
2 |
| Shanghai Mitsubishi Elevator Co., Ltd. | 8 |
2 |
| TK Elevator Innovation and Operations GmbH | 193 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8735 |
1 |
| FRANZ XAVER MEILLER FAHRZEUG - UND MASCHINENFABRIK - GmbH & CO KG | 50 |
1 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 637 |
1 |
| Macgregor Norway AS | 43 |
1 |
| The Peelle Company Ltd. | 3 |
1 |
| Zoomlion Heavy Industry Science and Technology Co., Ltd. | 376 |
1 |
| Other owners | 7 |