- All sections
- B - Performing operations; transporting
- B66B - Elevators; escalators or moving walkways
- B66B 5/00 - Applications of checking, fault-correcting or safety devices in elevators
Patent holdings for IPC class B66B 5/00
Total number of patents in this class: 2558
10-year publication summary
|
169
|
249
|
326
|
322
|
315
|
262
|
205
|
163
|
193
|
15
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Otis Elevator Company | 2647 |
502 |
| Kone Oyj | 2041 |
441 |
| Inventio AG | 2355 |
403 |
| Mitsubishi Electric Corporation | 44794 |
360 |
| Mitsubishi Electric Building Techno-Service Co., Ltd. | 423 |
128 |
| Hitachi, Ltd. | 15220 |
67 |
| Mitsubishi Electric Building Solutions Corporation | 303 |
58 |
| ThyssenKrupp Elevator AG | 216 |
30 |
| ThyssenKrupp AG | 3206 |
26 |
| TK Elevator Innovation and Operations GmbH | 168 |
24 |
| China University of Mining and Technology | 1224 |
20 |
| Japan Elevator Service Holdings Co., Ltd. | 47 |
18 |
| MITSUBISHI DENKI KABUSHIKI KAISHA also trading as Mitsubishi Electric Corporation | 629 |
18 |
| Hitachi Building Technology (Guangzhou) Co., Ltd. | 36 |
18 |
| Hitachi Building Systems Co., Ltd. | 49 |
11 |
| CEDES AG | 78 |
10 |
| Hyundai Elevator Co., Ltd. | 40 |
8 |
| Toshiba Elevator Kabushiki Kaisha | 78 |
8 |
| Kone Elevators Co., Ltd. | 30 |
8 |
| Schindler (China) Elevator Co. Ltd. | 23 |
8 |
| Other owners | 392 |