- All sections
- B - Performing operationstransporting
- B66B - Elevatorsescalators 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: 2647
10-year publication summary
|
157
|
238
|
321
|
317
|
310
|
259
|
202
|
162
|
193
|
137
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Otis Elevator Company | 2652 |
515 |
| Kone Oyj | 2097 |
468 |
| Inventio AG | 2387 |
418 |
| Mitsubishi Electric Corporation | 46547 |
363 |
| Mitsubishi Electric Building Techno-Service Co., Ltd. | 419 |
128 |
| Hitachi, Ltd. | 15588 |
72 |
| Mitsubishi Electric Building Solutions Corporation | 366 |
64 |
| TK Elevator Innovation and Operations GmbH | 194 |
31 |
| ThyssenKrupp Elevator AG | 209 |
29 |
| ThyssenKrupp AG | 3311 |
26 |
| China University of Mining and Technology | 1266 |
20 |
| Hitachi Building Technology (Guangzhou) Co., Ltd. | 37 |
19 |
| Japan Elevator Service Holdings Co., Ltd. | 49 |
18 |
| CEDES AG | 86 |
14 |
| Hyundai Elevator Co., Ltd. | 59 |
14 |
| Hitachi Building Systems Co., Ltd. | 52 |
11 |
| MITSUBISHI DENKI KABUSHIKI KAISHA also trading as Mitsubishi Electric Corporation | 253 |
10 |
| Appana Industries LLC | 21 |
9 |
| Kone Elevators Co., Ltd. | 34 |
8 |
| Schindler (China) Elevator Co. Ltd. | 24 |
8 |
| Other owners | 402 |