- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 35/187 - Mining picksHolders therefor with arrangement of fluid-spraying nozzles
Patent holdings for IPC class E21C 35/187
Total number of patents in this class: 20
10-year publication summary
|
1
|
2
|
1
|
1
|
1
|
0
|
0
|
1
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Minnovation Limited | 7 |
4 |
| China University of Mining and Technology | 1316 |
3 |
| Joy Global Underground Mining LLC | 344 |
3 |
| Kennametal Inc. | 1354 |
2 |
| IHC Holland IE B.V. | 260 |
2 |
| Shandong University | 1158 |
1 |
| Southern Engineering Services Pty Ltd | 3 |
1 |
| Zhejiang University | 3463 |
1 |
| ESCO Group LLC | 311 |
1 |
| Michamvi Marketing (Pty) Limited | 1 |
1 |
| Techgong Mining & Engineering Services Pty Ltd | 1 |
1 |
| Other owners | 0 |