- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 35/02 - Locking equipment for slewable parts
Patent holdings for IPC class E21C 35/02
Total number of patents in this class: 9
10-year publication summary
|
1
|
0
|
0
|
1
|
1
|
0
|
1
|
1
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sandvik Mining and Construction G.m.b.H. | 93 |
4 |
| Joy MM Delaware, Inc. | 56 |
1 |
| Metso Minerals, Inc. | 104 |
1 |
| Xuzhou Xugong Foundation Construction Machinery Co., Ltd. | 20 |
1 |
| Shanxi Tiandi Coal Mining Machinery Co., Ltd. | 25 |
1 |
| Ccteg Taiyuan Research Institute | 9 |
1 |
| Other owners | 0 |