- All sections
- B - Performing operations; transporting
- B66B - Elevators; escalators or moving walkways
- B66B 17/04 - Mining-hoist cars or cages
Patent holdings for IPC class B66B 17/04
Total number of patents in this class: 16
10-year publication summary
|
1
|
1
|
2
|
3
|
0
|
1
|
2
|
0
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| China University of Mining and Technology | 1189 |
5 |
| Taiyuan University of Technology | 212 |
3 |
| Xuzhou Coal Mine Safety Equipment Manufacture Co., Ltd. | 23 |
2 |
| China University of Mining & Technology (Beijing) | 42 |
1 |
| J.S. Redpath Limited | 3 |
1 |
| Murata Machinery, Ltd. | 1386 |
1 |
| Zaozhuang University | 30 |
1 |
| Xuzhou Daheng Measurement and Control Technology Co., Ltd. | 9 |
1 |
| Redpath Canada Limited | 15 |
1 |
| Other owners | 0 |