- All sections
- E - Fixed constructions
- E02B - Hydraulic engineering
- E02B 9/06 - Pressure galleries or pressure conduitsGalleries specially adapted to house pressure conduitsMeans specially adapted for use therewith, e.g. housings, valves, gates
Patent holdings for IPC class E02B 9/06
Total number of patents in this class: 39
10-year publication summary
|
1
|
4
|
6
|
0
|
3
|
3
|
7
|
6
|
3
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Obermeyer, Henry K. | 15 |
4 |
| W.L. French Hydropower Holdings LLC | 28 |
4 |
| Rubicon Research Pty Ltd. | 69 |
3 |
| Bioener Bierzo, S.L. | 2 |
2 |
| Columbia Power Technologies, Inc. | 27 |
2 |
| Progenesys | 2 |
2 |
| Voidform Products, LLC | 32 |
2 |
| Nippon Telegraph and Telephone Corporation | 16002 |
1 |
| Axis Energy Group Pty Ltd | 5 |
1 |
| Bioner Bierzo, S.L. | 1 |
1 |
| Chengdu Alangtech Co., Ltd. | 6 |
1 |
| Gravity Power LLC | 4 |
1 |
| Heindl Energy GmbH | 9 |
1 |
| Hydrovolts, Inc. | 3 |
1 |
| Natel Energy, Inc. | 11 |
1 |
| Technische Universitat Wien | 397 |
1 |
| Tractel Ltd. | 20 |
1 |
| Sharif University of Technology | 32 |
1 |
| Littoral Power Systems Inc. | 19 |
1 |
| Power Development International, Inc. | 2 |
1 |
| Other owners | 7 |