- All sections
- B - Performing operationstransporting
- B66B - Elevatorsescalators or moving walkways
- B66B 23/24 - Handrails
Patent holdings for IPC class B66B 23/24
Total number of patents in this class: 139
10-year publication summary
|
6
|
10
|
10
|
13
|
6
|
12
|
14
|
5
|
7
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 45583 |
27 |
| Otis Elevator Company | 2658 |
27 |
| EHC Canada, Inc. | 31 |
16 |
| Inventio AG | 2359 |
14 |
| Semperit AG Holding | 31 |
10 |
| Innova Patent GmbH | 210 |
4 |
| Kone Oyj | 2068 |
4 |
| Semperit Aktiengesellschaft Holding | 20 |
3 |
| AD Corporation Limited | 3 |
3 |
| Hitachi, Ltd. | 15364 |
2 |
| Denki Kagaku Kogyo Kabushiki Kaisha | 637 |
2 |
| Mitsubishi Electric Building Techno-Service Co., Ltd. | 423 |
2 |
| Tokan Co., Ltd. | 3 |
2 |
| Toshiba Elevator Kabushiki Kaisha | 68 |
2 |
| Sookyoung A.i.d. Co., Ltd. | 2 |
2 |
| TK Elevator Innovation and Operations GmbH | 168 |
2 |
| Beltways, Inc. | 17 |
2 |
| TK Escalator Norte S.A. | 8 |
2 |
| NEC Corporation | 35167 |
1 |
| Brad Koering | 1 |
1 |
| Other owners | 11 |