- All sections
- B - Performing operations; transporting
- B66B - Elevators; escalators 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: 125
10-year publication summary
|
10
|
13
|
10
|
8
|
13
|
16
|
9
|
4
|
8
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Otis Elevator Company | 2677 |
41 |
| Inventio AG | 2314 |
22 |
| Mitsubishi Electric Corporation | 43934 |
15 |
| Fujitec Co., Ltd. | 67 |
5 |
| Wittur Holding GmbH | 99 |
5 |
| Kone Oyj | 2000 |
5 |
| Hitachi, Ltd. | 16452 |
4 |
| ThyssenKrupp Elevator AG | 217 |
4 |
| Sematic S.p.A | 23 |
3 |
| ThyssenKrupp AG | 3086 |
2 |
| G.A.L. Manufacturing Company LLC | 13 |
2 |
| Fge Elettronica S.r.l. | 2 |
2 |
| Shanghai Mitsubishi Elevator Co., Ltd. | 8 |
2 |
| TK Elevator Innovation and Operations GmbH | 158 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
1 |
| FRANZ XAVER MEILLER FAHRZEUG - UND MASCHINENFABRIK - GmbH & CO KG | 42 |
1 |
| Macgregor Norway AS | 41 |
1 |
| The Peelle Company Ltd. | 4 |
1 |
| Toshiba Elevator Kabushiki Kaisha | 101 |
1 |
| Zoomlion Heavy Industry Science and Technology Co., Ltd. | 344 |
1 |
| Other owners | 5 |