- 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: 2454
10-year publication summary
|
120
|
169
|
249
|
326
|
322
|
315
|
262
|
205
|
163
|
70
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Otis Elevator Company | 2677 |
491 |
| Kone Oyj | 2000 |
412 |
| Inventio AG | 2314 |
394 |
| Mitsubishi Electric Corporation | 43934 |
357 |
| Mitsubishi Electric Building Techno-Service Co., Ltd. | 427 |
128 |
| Hitachi, Ltd. | 16452 |
60 |
| Mitsubishi Electric Building Solutions Corporation | 222 |
39 |
| ThyssenKrupp Elevator AG | 217 |
30 |
| ThyssenKrupp AG | 3086 |
26 |
| TK Elevator Innovation and Operations GmbH | 158 |
25 |
| MITSUBISHI DENKI KABUSHIKI KAISHA also trading as Mitsubishi Electric Corporation | 1082 |
23 |
| China University of Mining and Technology | 1189 |
20 |
| Japan Elevator Service Holdings Co., Ltd. | 47 |
18 |
| Hitachi Building Technology (Guangzhou) Co., Ltd. | 29 |
13 |
| CEDES AG | 79 |
10 |
| Hitachi Building Systems Co., Ltd. | 45 |
10 |
| Toshiba Elevator Kabushiki Kaisha | 101 |
9 |
| Schindler (China) Elevator Co. Ltd. | 23 |
8 |
| Japan Elevator Service Co., Ltd. | 7 |
7 |
| Kone Elevators Co., Ltd. | 28 |
7 |
| Other owners | 367 |