- 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: 141
10-year publication summary
|
10
|
8
|
13
|
16
|
9
|
4
|
8
|
9
|
6
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Otis Elevator Company | 2693 |
42 |
| Inventio AG | 2405 |
28 |
| Mitsubishi Electric Corporation | 47943 |
15 |
| Wittur Holding GmbH | 137 |
8 |
| Kone Oyj | 2150 |
7 |
| Fujitec Co., Ltd. | 71 |
6 |
| Hitachi, Ltd. | 16047 |
4 |
| ThyssenKrupp Elevator AG | 207 |
4 |
| TK Elevator Innovation and Operations GmbH | 219 |
3 |
| Sematic S.p.A | 22 |
2 |
| ThyssenKrupp AG | 3438 |
2 |
| Prisma S.p.A. | 3 |
2 |
| G.A.L. Manufacturing Company LLC | 15 |
2 |
| Fge Elettronica S.r.l. | 2 |
2 |
| Shanghai Mitsubishi Elevator Co., Ltd. | 8 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 9099 |
1 |
| FRANZ XAVER MEILLER FAHRZEUG - UND MASCHINENFABRIK - GmbH & CO KG | 50 |
1 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 763 |
1 |
| Macgregor Norway AS | 44 |
1 |
| Zoomlion Heavy Industry Science and Technology Co., Ltd. | 405 |
1 |
| Other owners | 7 |