- All sections
- E - Fixed constructions
- E02D - Foundations; excavations; embankments; underground 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: 59
10-year publication summary
|
3
|
2
|
3
|
2
|
9
|
8
|
11
|
9
|
4
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Subsurface,Inc. | 23 |
9 |
| Delta SubSea LLC | 27 |
3 |
| Tetra Technologies, Inc. | 97 |
2 |
| Lake Restoration Solutions, Inc. | 5 |
2 |
| Aquapera Industries Inc. | 2 |
2 |
| Road & Bridge International Co., Ltd. | 19 |
2 |
| Mvc Océan Inc. | 2 |
2 |
| Belbridge BVBA | 4 |
1 |
| Cofferdam, LLC | 2 |
1 |
| General Coatings N.V. | 1 |
1 |
| George Mason University | 155 |
1 |
| Hitachi Zosen Corporation | 619 |
1 |
| Huesker Synthetic GmbH | 89 |
1 |
| Kajima Corporation | 87 |
1 |
| Korea Institute of Civil Engineering and Building Technology | 129 |
1 |
| Nippon Steel Corporation | 5982 |
1 |
| Portadam, Inc. | 7 |
1 |
| Siemens Gamesa Renewable Energy A/S | 1784 |
1 |
| CCCC First Harbor Engineering Co., Ltd. | 29 |
1 |
| Changsha University of Science and Technology | 86 |
1 |
| Other owners | 24 |