- All sections
- B - Performing operationstransporting
- B66B - Elevatorsescalators or moving walkways
- B66B 23/04 - Driving gear for handrails
Patent holdings for IPC class B66B 23/04
Total number of patents in this class: 46
10-year publication summary
|
4
|
2
|
5
|
9
|
2
|
2
|
1
|
5
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Otis Elevator Company | 2694 |
14 |
| Inventio AG | 2390 |
6 |
| Kone Oyj | 2131 |
6 |
| Mitsubishi Electric Corporation | 47722 |
4 |
| Beltways, Inc. | 24 |
3 |
| Innova Patent GmbH | 204 |
2 |
| Sookyoung A.i.d. Co., Ltd. | 2 |
2 |
| Mitsubishi Electric Building Techno-Service Co., Ltd. | 414 |
1 |
| ThyssenKrupp Elevator Innovation Center, S.A. | 35 |
1 |
| University of Pittsburgh - Of the Commonwealth System of Higher Education | 3274 |
1 |
| SJEC Corporation | 9 |
1 |
| Canny Elevator Co., Ltd. | 22 |
1 |
| KONE Elevator Co., Ltd. | 6 |
1 |
| Hanson Lift (Suzhou) Co., Ltd. | 9 |
1 |
| TK Elevator Innovation and Operations GmbH | 219 |
1 |
| Mitsubishi Electric Building Solutions Corporation | 402 |
1 |
| Other owners | 0 |