- 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: 1141
10-year publication summary
|
48
|
81
|
113
|
139
|
98
|
116
|
101
|
82
|
77
|
20
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 43934 |
293 |
| Kone Oyj | 2000 |
186 |
| Otis Elevator Company | 2677 |
168 |
| Inventio AG | 2314 |
81 |
| Mitsubishi Electric Building Techno-Service Co., Ltd. | 427 |
57 |
| MITSUBISHI DENKI KABUSHIKI KAISHA also trading as Mitsubishi Electric Corporation | 1082 |
41 |
| Hitachi, Ltd. | 16452 |
39 |
| Mitsubishi Electric Building Solutions Corporation | 222 |
23 |
| TK Elevator Innovation and Operations GmbH | 158 |
11 |
| Toshiba Elevator Kabushiki Kaisha | 101 |
10 |
| ThyssenKrupp Elevator AG | 217 |
8 |
| ThyssenKrupp AG | 3086 |
7 |
| thyssenkrupp Elevator Innovation and Operations GmbH | 59 |
7 |
| China University of Mining and Technology | 1189 |
6 |
| ThyssenKrupp Elevator Corporation | 33 |
6 |
| Hitachi Building Technology (Guangzhou) Co., Ltd. | 29 |
6 |
| Shimadzu Corporation | 5791 |
5 |
| SafeWorks, LLC | 80 |
5 |
| Kabushiki Kaisha Yaskawa Denki | 1468 |
4 |
| Hangzhou Huning Elevator Parts Co., Ltd. | 12 |
4 |
| Other owners | 174 |