- All sections
- B - Performing operations; transporting
- B66B - Elevators; escalators or moving walkways
- B66B 13/20 - Lock mechanisms actuated mechanically by abutments or projections on the cages
Patent holdings for IPC class B66B 13/20
Total number of patents in this class: 41
10-year publication summary
|
4
|
3
|
4
|
5
|
11
|
7
|
4
|
2
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Otis Elevator Company | 2677 |
20 |
| Mitsubishi Electric Corporation | 43934 |
6 |
| Inventio AG | 2314 |
3 |
| Kone Oyj | 2000 |
3 |
| Fujitec Co., Ltd. | 67 |
2 |
| Hitachi, Ltd. | 16452 |
1 |
| ThyssenKrupp Elevator AG | 217 |
1 |
| Wittur Holding GmbH | 99 |
1 |
| G.A.L. Manufacturing Company LLC | 13 |
1 |
| GOMIS EGEA, Eduard | 3 |
1 |
| Mitsubishi Elevator Korea Co., Ltd. | 15 |
1 |
| Shanghai Mitsubishi Elevator Co., Ltd. | 8 |
1 |
| Other owners | 0 |