- All sections
- E - Fixed constructions
- E02D - Foundationsexcavationsembankmentsunderground or underwater structures
- E02D 19/04 - Restraining of open water by coffer-dams
Patent holdings for IPC class E02D 19/04
Total number of patents in this class: 69
10-year publication summary
|
2
|
3
|
2
|
9
|
8
|
11
|
9
|
4
|
6
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Subsurface,Inc. | 25 |
10 |
| Mvc Océan Inc. | 4 |
4 |
| Delta SubSea LLC | 27 |
3 |
| Road & Bridge International Co., Ltd. | 22 |
3 |
| George Mason Research Foundation, Inc. | 96 |
2 |
| Tetra Technologies, Inc. | 107 |
2 |
| CCCC First Harbor Engineering Co., Ltd. | 53 |
2 |
| China First Highway Engineering Company Ltd | 21 |
2 |
| CCCC Third Harbor Engineering Co., Ltd. | 60 |
2 |
| Purdue Research Foundation | 3913 |
1 |
| Belbridge BVBA | 3 |
1 |
| Cofferdam, LLC | 2 |
1 |
| General Coatings N.V. | 1 |
1 |
| Hitachi Zosen Corporation | 602 |
1 |
| Huesker Synthetic GmbH | 81 |
1 |
| Kajima Corporation | 90 |
1 |
| Korea Institute of Civil Engineering and Building Technology | 142 |
1 |
| Nippon Steel Corporation | 6843 |
1 |
| Portadam, Inc. | 5 |
1 |
| Siemens Gamesa Renewable Energy A/S | 1960 |
1 |
| Other owners | 28 |