- All sections
- B - Performing operationstransporting
- B66B - Elevatorsescalators or moving walkways
- B66B 5/02 - Applications of checking, fault-correcting or safety devices in elevators responsive to abnormal operating conditions
Patent holdings for IPC class B66B 5/02
Total number of patents in this class: 1175
10-year publication summary
|
81
|
110
|
136
|
98
|
114
|
105
|
82
|
76
|
60
|
34
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 46197 |
303 |
| Kone Oyj | 2087 |
193 |
| Otis Elevator Company | 2660 |
175 |
| Inventio AG | 2381 |
88 |
| Mitsubishi Electric Building Techno-Service Co., Ltd. | 419 |
57 |
| Hitachi, Ltd. | 15513 |
50 |
| Mitsubishi Electric Building Solutions Corporation | 347 |
27 |
| MITSUBISHI DENKI KABUSHIKI KAISHA also trading as Mitsubishi Electric Corporation | 307 |
17 |
| TK Elevator Innovation and Operations GmbH | 194 |
11 |
| ThyssenKrupp Elevator AG | 209 |
8 |
| China University of Mining and Technology | 1256 |
7 |
| ThyssenKrupp AG | 3291 |
7 |
| Hitachi Building Technology (Guangzhou) Co., Ltd. | 37 |
6 |
| Shimadzu Corporation | 6179 |
5 |
| SafeWorks, LLC | 84 |
5 |
| ThyssenKrupp Elevator Corporation | 29 |
5 |
| thyssenkrupp Elevator Innovation and Operations GmbH | 37 |
5 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 630 |
4 |
| Kabushiki Kaisha Yaskawa Denki | 1477 |
4 |
| Toshiba Elevator Kabushiki Kaisha | 65 |
4 |
| Other owners | 194 |