- 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: 1196
10-year publication summary
|
113
|
139
|
98
|
116
|
106
|
84
|
77
|
60
|
50
|
34
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 47943 |
305 |
| Kone Oyj | 2150 |
196 |
| Otis Elevator Company | 2693 |
188 |
| Inventio AG | 2405 |
91 |
| Mitsubishi Electric Building Techno-Service Co., Ltd. | 414 |
56 |
| Hitachi, Ltd. | 16047 |
50 |
| Mitsubishi Electric Building Solutions Corporation | 406 |
34 |
| TK Elevator Innovation and Operations GmbH | 219 |
11 |
| ThyssenKrupp Elevator AG | 207 |
8 |
| China University of Mining and Technology | 1307 |
7 |
| ThyssenKrupp AG | 3438 |
7 |
| Hitachi Building Technology (Guangzhou) Co., Ltd. | 37 |
6 |
| Shimadzu Corporation | 6336 |
5 |
| SafeWorks, LLC | 86 |
5 |
| Japan Elevator Service Holdings Co., Ltd. | 51 |
5 |
| thyssenkrupp Elevator Innovation and Operations GmbH | 36 |
5 |
| Winone Elevator Company Limited | 20 |
5 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 763 |
4 |
| ThyssenKrupp Elevator Corporation | 19 |
4 |
| Hangzhou Huning Elevator Parts Co., Ltd. | 12 |
4 |
| Other owners | 200 |