- All sections
- E - Fixed constructions
- E02D - Foundationsexcavationsembankmentsunderground or underwater structures
- E02D 29/067 - Floating tunnelsSubmerged bridge-like tunnels, i.e. tunnels supported by piers or the like above the water-bed
Patent holdings for IPC class E02D 29/067
Total number of patents in this class: 15
10-year publication summary
|
0
|
2
|
3
|
0
|
4
|
3
|
2
|
5
|
1
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| China Communications Construction Company Limited | 14 |
3 |
| Tianjin Research Institute for Water Transport Engineering, M.O.T. China | 4 |
3 |
| Daewoo Engineering & Construction Co., Ltd. | 28 |
1 |
| Hefei University of Technology | 236 |
1 |
| CCCC Highway Consultants Co. Ltd. | 15 |
1 |
| CCCC First Harbor Engineering Co., Ltd. | 38 |
1 |
| Sdo ZT GmbH | 3 |
1 |
| Skanska Infra Oy | 1 |
1 |
| Du, Yang | 5 |
1 |
| HERREWYN, Jean Michel | 1 |
1 |
| Tonghua Normal University | 1 |
1 |
| Other owners | 0 |