- All sections
- B - Performing operationstransporting
- B66B - Elevatorsescalators or moving walkways
- B66B 11/04 - Driving gear
Patent holdings for IPC class B66B 11/04
Total number of patents in this class: 577
10-year publication summary
|
66
|
81
|
88
|
52
|
66
|
53
|
41
|
25
|
21
|
16
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Otis Elevator Company | 2658 |
188 |
| Kone Oyj | 2106 |
76 |
| Mitsubishi Electric Corporation | 46926 |
31 |
| Toshiba Corporation | 12548 |
28 |
| Inventio AG | 2380 |
25 |
| ThyssenKrupp AG | 3336 |
24 |
| ThyssenKrupp Elevator AG | 208 |
24 |
| TK Elevator Innovation and Operations GmbH | 199 |
15 |
| Hitachi, Ltd. | 15692 |
7 |
| ThyssenKrupp Elevator Innovation and Operations AG | 29 |
7 |
| Hyundai Elevator Co., Ltd. | 62 |
6 |
| Desird Tasarim Arge Anonim Şirketi | 7 |
4 |
| China University of Mining and Technology | 1275 |
3 |
| Moteurs Leroy-Somer | 189 |
3 |
| FICONT INDUSTRY (BEIJING) Co., Ltd. | 43 |
3 |
| Adaptive Concepts Ltd. | 9 |
3 |
| MITSUBISHI DENKI KABUSHIKI KAISHA also trading as Mitsubishi Electric Corporation | 204 |
3 |
| Hunan Daju Information Tech Co Ltd | 3 |
3 |
| Linearity Co., Ltd. | 7 |
3 |
| Roche Diagnostics Operations, Inc. | 1508 |
2 |
| Other owners | 119 |