- All sections
- B - Performing operationstransporting
- B66B - Elevatorsescalators or moving walkways
- B66B 1/46 - Adaptations of switches or switchgear
Patent holdings for IPC class B66B 1/46
Total number of patents in this class: 936
10-year publication summary
|
80
|
87
|
89
|
109
|
99
|
107
|
63
|
57
|
41
|
25
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Otis Elevator Company | 2702 |
259 |
| Kone Oyj | 2156 |
202 |
| Inventio AG | 2403 |
174 |
| Mitsubishi Electric Corporation | 48048 |
80 |
| TK Elevator Innovation and Operations GmbH | 221 |
10 |
| Hyundai Elevator Co., Ltd. | 80 |
9 |
| Hitachi, Ltd. | 16113 |
8 |
| Fujitec Co., Ltd. | 71 |
6 |
| INGERSOLL Rand Security Technologies | 11 |
6 |
| ThyssenKrupp AG | 3399 |
6 |
| Appana Industries LLC | 22 |
6 |
| Mitsubishi Electric Research Laboratories, Inc. | 1121 |
5 |
| ThyssenKrupp Elevator AG | 207 |
5 |
| Mitsubishi Electric Building Solutions Corporation | 410 |
5 |
| International Business Machines Corporation | 62671 |
4 |
| Naver Corporation | 750 |
3 |
| Shin, Kyong-min | 3 |
3 |
| ThyssenKrupp Elevator Corporation | 19 |
3 |
| Hangzhou Optimax Tech. Co., Ltd | 6 |
3 |
| Jiangsu Welm Technology Co., Ltd | 18 |
3 |
| Other owners | 136 |