- All sections
- B - Performing operations; transporting
- B66B - Elevators; escalators or moving walkways
- B66B 1/14 - Control systems without regulation, i.e. without retroactive action electric with devices, e.g. push-buttons, for indirect control of movements
Patent holdings for IPC class B66B 1/14
Total number of patents in this class: 239
10-year publication summary
|
2
|
6
|
12
|
25
|
21
|
22
|
22
|
31
|
17
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 43934 |
117 |
| Otis Elevator Company | 2677 |
15 |
| MITSUBISHI DENKI KABUSHIKI KAISHA also trading as Mitsubishi Electric Corporation | 1082 |
12 |
| Hitachi, Ltd. | 16452 |
10 |
| Inventio AG | 2314 |
10 |
| Mitsubishi Electric Building Techno-Service Co., Ltd. | 427 |
10 |
| Kone Oyj | 2000 |
8 |
| Mitsubishi Electric Building Solutions Corporation | 222 |
8 |
| Jiangsu Welm Technology Co., Ltd | 17 |
7 |
| NEC Corporation | 32703 |
5 |
| Hitachi Building Systems Co., Ltd. | 45 |
2 |
| KITO Corporation | 166 |
2 |
| Technologies GRB Inc. | 6 |
2 |
| MWS Fabrication, Inc. | 3 |
2 |
| Sony Corporation | 32931 |
1 |
| Nikon Corporation | 7162 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
1 |
| ZTE Corporation | 39218 |
1 |
| Carrier Corporation | 4759 |
1 |
| Hainan University | 142 |
1 |
| Other owners | 23 |