- All sections
- E - Fixed constructions
- E02D - Foundationsexcavationsembankmentsunderground or underwater structures
- E02D 23/00 - CaissonsConstruction or placing of caissons
Patent holdings for IPC class E02D 23/00
Total number of patents in this class: 68
10-year publication summary
|
7
|
5
|
8
|
9
|
4
|
2
|
6
|
3
|
4
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Geopier Foundation Company, Inc. | 143 |
8 |
| Equinor Energy AS | 497 |
4 |
| American Piledriving Equipment, Inc. | 61 |
3 |
| ExxonMobil Upstream Research Company | 2302 |
3 |
| Universal Foundation A/S | 8 |
3 |
| CCCC Fourth Harbor Engineering Co., Ltd. | 30 |
3 |
| Grade Separation Systems Inc. | 5 |
2 |
| CCCC First Harbor Engineering Co., Ltd. | 53 |
2 |
| The Second Engineering Company of CCCC Fourth Harbor Engineering Co., Ltd. | 14 |
2 |
| Lockheed Martin Corporation | 3255 |
1 |
| Acciona, S.A. | 57 |
1 |
| American Transmission Company LLC | 6 |
1 |
| Carbures Europe, S.A. | 1 |
1 |
| Compagnie du Sol | 6 |
1 |
| ConocoPhillips Company | 1709 |
1 |
| Dongjin Construction Co., Ltd. | 1 |
1 |
| ENI S.p.A. | 1308 |
1 |
| Horton Wison Deepwater, Inc. | 28 |
1 |
| JFE Metal Products & Engineering Inc. | 5 |
1 |
| Korea Institute of Ocean Science & Technology | 441 |
1 |
| Other owners | 27 |