- All sections
- E - Fixed constructions
- E02D - Foundationsexcavationsembankmentsunderground or underwater structures
- E02D 9/02 - Removing sheet pile bulkheads, piles, mould-pipes, or other moulds by withdrawing
Patent holdings for IPC class E02D 9/02
Total number of patents in this class: 44
10-year publication summary
|
1
|
2
|
6
|
3
|
5
|
7
|
5
|
5
|
7
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dieseko Group B.V. | 11 |
3 |
| Heerema Marine Contractors Nederland SE | 60 |
3 |
| Shandong University | 1048 |
2 |
| Nippon Telegraph and Telephone Corporation | 17362 |
1 |
| Bauer Maschinen GmbH | 226 |
1 |
| Bouygues Travaux Publics | 28 |
1 |
| China Nuclear Power Engineering Co., Ltd. | 253 |
1 |
| Daedong Engineering Co., Ltd. | 13 |
1 |
| Dr. Techn. Olav Olsen AS | 12 |
1 |
| innogy SE | 200 |
1 |
| Nanjing Tech University | 256 |
1 |
| Nihon Kankyo Seizou Kabushiki Kaisha | 6 |
1 |
| Oceaneering International, Inc. | 422 |
1 |
| Powerchina Huadong Engineering Corporation Limited | 36 |
1 |
| Staaldam Beheer B.V. | 1 |
1 |
| Terra Sonic International, LLC | 36 |
1 |
| Oil States MCS Ltd. | 1 |
1 |
| Jiangsu University of Science and Technology | 383 |
1 |
| Zhejiang Huadong Engineering Safety Technology Co.,Ltd | 1 |
1 |
| Sif Holding N.V. | 32 |
1 |
| Other owners | 19 |