- All sections
- E - Fixed constructions
- E02B - Hydraulic engineering
- E02B 8/08 - Fish passesPassages for rafts or boats
Patent holdings for IPC class E02B 8/08
Total number of patents in this class: 93
10-year publication summary
|
13
|
6
|
10
|
11
|
7
|
12
|
10
|
11
|
6
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Littoral Power Systems Inc. | 20 |
5 |
| China Three Gorges Corporation | 230 |
5 |
| Fishheart Oy Ltd. | 12 |
5 |
| China Three Gorges University | 28 |
4 |
| Riverrestoration.org, LLC | 4 |
4 |
| W.L. French Hydropower Holdings LLC | 29 |
4 |
| KSB Aktiengesellschaft | 153 |
3 |
| Percheron Power, LLC | 6 |
3 |
| Fishcon GmbH | 6 |
3 |
| Battelle Memorial Institute | 2614 |
2 |
| China Institute of Water Resources and Hydropower Research | 106 |
2 |
| Eth Zurich | 1332 |
2 |
| Evoqua Water Technologies LLC | 928 |
2 |
| Natel Energy, Inc. | 11 |
2 |
| P.v. Flood Control Corp. | 31 |
2 |
| Nanjing Hydraulic Research Institute | 39 |
2 |
| Kalasydan Oy | 2 |
2 |
| Anhui University of Science & Technology | 28 |
2 |
| GIS Gas Infusion Systems Inc. | 16 |
2 |
| Powerchina Guiyang Engineering Corporation Limited | 13 |
2 |
| Other owners | 35 |