- All sections
- B - Performing operations; transporting
- B66B - Elevators; escalators or moving walkways
- B66B 5/14 - Applications of checking, fault-correcting or safety devices in elevators responsive to abnormal operating conditions in case of excessive loads
Patent holdings for IPC class B66B 5/14
Total number of patents in this class: 61
10-year publication summary
|
5
|
8
|
5
|
6
|
5
|
5
|
3
|
5
|
4
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Otis Elevator Company | 2677 |
11 |
| Inventio AG | 2314 |
10 |
| Mitsubishi Electric Corporation | 43934 |
8 |
| Kone Oyj | 2000 |
8 |
| Hitachi, Ltd. | 16452 |
2 |
| Dinacell Electrónica, S.L. | 18 |
2 |
| M.A.T. Malmedie Antriebstechnik GmbH | 15 |
2 |
| Mitsubishi Electric Building Techno-Service Co., Ltd. | 427 |
2 |
| MITSUBISHI DENKI KABUSHIKI KAISHA also trading as Mitsubishi Electric Corporation | 1082 |
2 |
| Wujiang Junda Elevator Parts Co., Ltd | 3 |
2 |
| Appana Industries LLC | 12 |
2 |
| ContiTech Antriebssysteme GmbH | 244 |
1 |
| Unovo, Inc. | 3 |
1 |
| US Tower Corporation | 19 |
1 |
| Lift Sensor, S.L. | 2 |
1 |
| Nantong Yao Telei Elevator Products Co. Ltd | 4 |
1 |
| thyssenkrupp Elevator Innovation and Operations GmbH | 59 |
1 |
| TK Elevator Innovation and Operations GmbH | 158 |
1 |
| Quiet Solutions Ltd | 2 |
1 |
| Babu, Killakathu Ramanathan | 12 |
1 |
| Other owners | 1 |