- 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: 38
10-year publication summary
|
6
|
4
|
4
|
10
|
2
|
3
|
4
|
3
|
4
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rubicon Research Pty Ltd. | 70 |
4 |
| NPK Access Solutions LLC | 46 |
3 |
| TGR Construction, Inc. | 18 |
2 |
| China Power Consrtuction Group Guiyang Survey and Design Institute Co. Ltd | 6 |
2 |
| Massachusetts Institute of Technology | 10251 |
1 |
| Chungbuk National University Industry-Academic Cooperation Foundation | 253 |
1 |
| Cube Hydro Partners, LLC | 1 |
1 |
| Electricite de France | 754 |
1 |
| Fuzhou University | 339 |
1 |
| North Shore Environmental Consultants Inc. | 3 |
1 |
| Shandong Jiaotong University | 53 |
1 |
| Thirsty Duck, LP | 5 |
1 |
| X Development LLC | 1392 |
1 |
| Yorkshire Water Services Limited | 2 |
1 |
| Zhejiang University | 3444 |
1 |
| William Bisson | 1 |
1 |
| Hiroko Terata | 2 |
1 |
| Hiroshi Terata | 1 |
1 |
| Environment Agency | 5 |
1 |
| Allied Entities Pty Ltd | 2 |
1 |
| Other owners | 11 |