- All sections
- B - Performing operations; transporting
- B66B - Elevators; escalators 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: 1161
10-year publication summary
|
81
|
113
|
139
|
98
|
117
|
103
|
82
|
77
|
60
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 44794 |
299 |
| Kone Oyj | 2041 |
193 |
| Otis Elevator Company | 2647 |
168 |
| Inventio AG | 2355 |
86 |
| Mitsubishi Electric Building Techno-Service Co., Ltd. | 423 |
57 |
| Hitachi, Ltd. | 15220 |
43 |
| MITSUBISHI DENKI KABUSHIKI KAISHA also trading as Mitsubishi Electric Corporation | 629 |
30 |
| Mitsubishi Electric Building Solutions Corporation | 303 |
26 |
| TK Elevator Innovation and Operations GmbH | 168 |
9 |
| ThyssenKrupp Elevator AG | 216 |
8 |
| ThyssenKrupp AG | 3206 |
7 |
| thyssenkrupp Elevator Innovation and Operations GmbH | 58 |
7 |
| China University of Mining and Technology | 1224 |
6 |
| ThyssenKrupp Elevator Corporation | 32 |
6 |
| Toshiba Elevator Kabushiki Kaisha | 78 |
6 |
| Hitachi Building Technology (Guangzhou) Co., Ltd. | 36 |
6 |
| Shimadzu Corporation | 6010 |
5 |
| SafeWorks, LLC | 82 |
5 |
| Kabushiki Kaisha Yaskawa Denki | 1479 |
4 |
| Hangzhou Huning Elevator Parts Co., Ltd. | 12 |
4 |
| Other owners | 186 |