- All sections
- E - Fixed constructions
- E02D - Foundationsexcavationsembankmentsunderground or underwater structures
- E02D 23/02 - Caissons able to be floated on water and to be lowered into water in situ
Patent holdings for IPC class E02D 23/02
Total number of patents in this class: 48
10-year publication summary
|
6
|
4
|
2
|
4
|
3
|
3
|
1
|
2
|
1
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dragados, S.A. | 20 |
2 |
| Kyoto University | 2958 |
2 |
| Drace Infraestructuras, S.A. | 5 |
2 |
| GraviFloat AS | 5 |
2 |
| Sembcorp Marine Integrated Yard Pte Ltd. | 12 |
2 |
| Berenguer Ingenieros S.L. | 4 |
2 |
| Acergy France SAS | 138 |
1 |
| Alstom Hydro France | 38 |
1 |
| Dr. Techn. Olav Olsen AS | 10 |
1 |
| ExxonMobil Upstream Research Company | 2276 |
1 |
| Gravi Float AS | 3 |
1 |
| Hitachi Zosen Corporation | 584 |
1 |
| Korea Institute of Ocean Science & Technology | 444 |
1 |
| Nikken Kogaku Co., LTD | 3 |
1 |
| Seatower AS | 19 |
1 |
| Technip France | 668 |
1 |
| Yujoo Co., Ltd. | 21 |
1 |
| Deepwater Wind, LLC | 1 |
1 |
| PROES Consultores, S.A. | 2 |
1 |
| Siemens Gamesa Renewable Energy A/S | 1986 |
1 |
| Other owners | 22 |