- All sections
- E - Fixed constructions
- E02D - Foundationsexcavationsembankmentsunderground or underwater structures
- E02D 5/50 - Piles comprising both precast concrete portions and concrete portions cast in situ
Patent holdings for IPC class E02D 5/50
Total number of patents in this class: 22
10-year publication summary
|
2
|
4
|
7
|
1
|
3
|
0
|
0
|
1
|
2
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| American Piledriving Equipment, Inc. | 64 |
4 |
| Hubbell Incorporated | 3343 |
3 |
| Kao Corporation | 4991 |
1 |
| Hohai University | 214 |
1 |
| Hyundai Engineering Co., Ltd. | 29 |
1 |
| innogy SE | 200 |
1 |
| Shandong University | 1064 |
1 |
| Soletanche Freyssinet | 482 |
1 |
| Zhengzhou University | 133 |
1 |
| Shandong Hi-Speed Group Co., Ltd | 11 |
1 |
| Keltbray Limited | 5 |
1 |
| Btenc Inc. | 1 |
1 |
| Foshan Gaoming Shungao Woods Co., Ltd. | 1 |
1 |
| Yubin Wang | 3 |
1 |
| CCCC Construction Group Co., Ltd. | 7 |
1 |
| Henan Jingwu Expressway Co., Ltd. | 1 |
1 |
| HuangHuai University | 10 |
1 |
| Other owners | 0 |