- All sections
- E - Fixed constructions
- E02D - Foundationsexcavationsembankmentsunderground or underwater structures
- E02D 5/20 - Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
Patent holdings for IPC class E02D 5/20
Total number of patents in this class: 36
10-year publication summary
|
5
|
5
|
3
|
2
|
4
|
5
|
3
|
1
|
1
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| American Piledriving Equipment, Inc. | 61 |
4 |
| Bauer Spezialtiefbau GmbH | 112 |
3 |
| Maguma Co., Ltd. | 3 |
2 |
| Soletanche Freyssinet | 492 |
2 |
| Waseda University | 474 |
2 |
| Qingdao Jingli Engineering Co,. Ltd. | 5 |
2 |
| ADB System | 2 |
2 |
| Hohai University | 224 |
1 |
| Mortarless Technologies, LLC | 71 |
1 |
| Nippon Steel Corporation | 6932 |
1 |
| PBC International, Inc. | 4 |
1 |
| Shandong University | 1158 |
1 |
| Shimizu Corporation | 102 |
1 |
| Taiyo Kiso Kogyo, Co., Ltd. | 2 |
1 |
| TOA Corporation | 130 |
1 |
| Tremco Incorporated | 16 |
1 |
| Wang, Fuming | 9 |
1 |
| Dawson Construction Plant Limited | 7 |
1 |
| Pirkan Laatupalvelu Oy | 11 |
1 |
| Jangwon Engineering Co., Ltd. | 2 |
1 |
| Other owners | 6 |