- All sections
- B - Performing operations; transporting
- B66B - Elevators; escalators or moving walkways
- B66B 3/00 - Applications of devices for indicating or signalling operating conditions of elevators
Patent holdings for IPC class B66B 3/00
Total number of patents in this class: 1146
10-year publication summary
|
46
|
48
|
89
|
144
|
117
|
131
|
158
|
87
|
77
|
30
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 43934 |
348 |
| Otis Elevator Company | 2677 |
166 |
| Kone Oyj | 2000 |
128 |
| Hitachi, Ltd. | 16452 |
85 |
| Inventio AG | 2314 |
71 |
| Mitsubishi Electric Building Techno-Service Co., Ltd. | 427 |
53 |
| MITSUBISHI DENKI KABUSHIKI KAISHA also trading as Mitsubishi Electric Corporation | 1082 |
48 |
| Japan Elevator Service Holdings Co., Ltd. | 47 |
24 |
| Mitsubishi Electric Building Solutions Corporation | 222 |
22 |
| Toshiba Elevator Kabushiki Kaisha | 101 |
17 |
| TK Elevator Innovation and Operations GmbH | 158 |
8 |
| ThyssenKrupp AG | 3086 |
7 |
| ThyssenKrupp Elevator AG | 217 |
7 |
| Japan Elevator Service Co., Ltd. | 7 |
6 |
| thyssenkrupp Elevator Innovation and Operations GmbH | 59 |
6 |
| Hitachi Building Systems Co., Ltd. | 45 |
5 |
| ThyssenKrupp Elevator Corporation | 33 |
5 |
| NEC Corporation | 32703 |
4 |
| Carrier Corporation | 4759 |
4 |
| CEDES AG | 79 |
4 |
| Other owners | 128 |