- All sections
- E - Fixed constructions
- E01D - Bridges
- E01D 4/00 - Arch-type bridges
Patent holdings for IPC class E01D 4/00
Total number of patents in this class: 56
10-year publication summary
|
3
|
7
|
8
|
7
|
2
|
7
|
2
|
6
|
4
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shenzhen Municipal Design & Research Institute Co., Ltd. | 24 |
4 |
| HNTB Corporation | 6 |
3 |
| University of Notre Dame du Lac | 565 |
3 |
| Teracells Inc. | 4 |
3 |
| Fuzhou University | 313 |
2 |
| Guangxi University | 81 |
2 |
| Lock-Block Ltd. | 31 |
2 |
| Shandong University | 1035 |
2 |
| Structure Sight LLC | 5 |
2 |
| Technische Universitat Wien | 385 |
2 |
| SOLETANCHE FREYSSINET, société par actions simplifiée | 37 |
2 |
| Tesla, Inc. | 1712 |
2 |
| The Board of Trustees of the University of Illinois | 2689 |
1 |
| Japan Science and Technology Agency | 1329 |
1 |
| AIL International Inc. | 66 |
1 |
| The European Union, represented by The European Commission | 218 |
1 |
| Hunan University | 151 |
1 |
| Nanjing Lianzhong Construction Engineering Technology Co., Ltd. | 18 |
1 |
| Rubrica Ingenieria y Arquitectura, S.L. | 12 |
1 |
| ThyssenKrupp AG | 3279 |
1 |
| Other owners | 19 |