- All sections
- E - Fixed constructions
- E02B - Hydraulic engineering
- E02B 7/04 - Dams across valleys
Patent holdings for IPC class E02B 7/04
Total number of patents in this class: 16
10-year publication summary
|
2
|
0
|
3
|
0
|
1
|
0
|
1
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Institute of Mountain Hazards and Environment Chinese Academy of Sciences | 33 |
3 |
| W.L. French Hydropower Holdings LLC | 28 |
3 |
| Tsinghua University | 6113 |
2 |
| Littoral Power Systems Inc. | 19 |
2 |
| French Development Enterprises, LLC | 1 |
1 |
| J.F. Brennan Company, Inc. | 24 |
1 |
| Nanjing Hydraulic Research Institute | 38 |
1 |
| Emgesa S.A., Esp. | 1 |
1 |
| Guangdong No. 2 Hydropower Engineering Company, Ltd. | 2 |
1 |
| Guangdong YSD Surveying & designing Co., Ltd. | 2 |
1 |
| Other owners | 0 |