- All sections
- E - Fixed constructions
- E02B - Hydraulic engineering
- E02B 8/04 - Valves, slides, or the likeSubmerged sluice gates
Patent holdings for IPC class E02B 8/04
Total number of patents in this class: 35
10-year publication summary
|
5
|
6
|
4
|
4
|
10
|
2
|
3
|
4
|
3
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rubicon Research Pty Ltd. | 70 |
4 |
| NPK Access Solutions LLC | 47 |
3 |
| TGR Construction, Inc. | 19 |
2 |
| China Power Consrtuction Group Guiyang Survey and Design Institute Co. Ltd | 6 |
2 |
| Massachusetts Institute of Technology | 10057 |
1 |
| Changjiang River Scientific Research Institute, Changjiang Water Resources Commission | 5 |
1 |
| Chungbuk National University Industry-Academic Cooperation Foundation | 224 |
1 |
| Cube Hydro Partners, LLC | 2 |
1 |
| Electricite de France | 734 |
1 |
| Fuzhou University | 316 |
1 |
| North Shore Environmental Consultants Inc. | 3 |
1 |
| Samaran International Pty Ltd | 4 |
1 |
| Thirsty Duck, LP | 5 |
1 |
| X Development LLC | 1302 |
1 |
| Yorkshire Water Services Limited | 2 |
1 |
| Zhejiang University | 3143 |
1 |
| William Bisson | 1 |
1 |
| Hiroko Terata | 2 |
1 |
| Hiroshi Terata | 1 |
1 |
| Environment Agency | 5 |
1 |
| Other owners | 8 |