- All sections
- E - Fixed constructions
- E02D - Foundations; excavations; embankments; underground or underwater structures
- E02D 29/05 - Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench
Patent holdings for IPC class E02D 29/05
Total number of patents in this class: 38
10-year publication summary
|
2
|
2
|
2
|
0
|
3
|
2
|
3
|
2
|
7
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Telegraph and Telephone Corporation | 14195 |
3 |
| Soletanche Freyssinet | 480 |
2 |
| Terratech Consulting Ltd. | 6 |
2 |
| Atlas Survival Shelters, LLC | 11 |
1 |
| Channell Commercial Corporation | 76 |
1 |
| Contech Engineered Solutions LLC | 208 |
1 |
| DeWind One-Pass Trenching, LLC | 5 |
1 |
| Guangzhou Jishi Construction Group Co., Ltd. | 2 |
1 |
| Guangzhou Xinqiao Construction Service Co., Ltd. | 1 |
1 |
| Korea Institute of Ocean Science & Technology | 353 |
1 |
| National University Corporation Nagoya University | 921 |
1 |
| Networked Infrastructure National Architecture Pty Ltd | 1 |
1 |
| Samsung Engineering Co., Ltd. | 45 |
1 |
| Saudi Arabian Oil Company | 11322 |
1 |
| Shandong University | 886 |
1 |
| Tongji University | 440 |
1 |
| University of Maine System Board of Trustees | 261 |
1 |
| Nanjing Lianzhong Engineering Technology Co., Ltd. | 15 |
1 |
| Dutypoint Limited | 6 |
1 |
| Armatek Global SL | 2 |
1 |
| Other owners | 14 |