- All sections
- E - Fixed constructions
- E01D - Bridges
- E01D 11/04 - Cable-stayed bridges
Patent holdings for IPC class E01D 11/04
Total number of patents in this class: 78
10-year publication summary
|
2
|
1
|
7
|
8
|
5
|
4
|
4
|
6
|
3
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dywidag-Systems International GmbH | 75 |
12 |
| Soletanche Freyssinet | 482 |
12 |
| VSL International AG | 89 |
4 |
| GS Engineering & Construction Corp. | 30 |
3 |
| China Railway Major Bridge Engineering Group Co., Ltd | 13 |
3 |
| Danmarks Tekniske Universitet | 983 |
2 |
| Freyssinet International (STUP) | 10 |
2 |
| IHI Infrastructure Systems Co., Ltd. | 18 |
2 |
| Ove ARUP & Partners Korea Ltd. | 2 |
2 |
| Ringneck and Son, LLC | 2 |
2 |
| Zhejiang University City College | 51 |
2 |
| AEF Ice Systems Inc. | 7 |
2 |
| Frio LLC | 5 |
2 |
| China Railway Bridge Research Technology Co., Ltd | 2 |
2 |
| The Trustees of Columbia University in the City of New York | 3597 |
1 |
| Dong-A University Research Foundation for Industry-Academy Cooperation | 199 |
1 |
| FCC Construccion S.A. | 7 |
1 |
| Infrastructure Preservation Corporation, AKA IPC | 9 |
1 |
| Omni Lps. Co., Ltd. | 23 |
1 |
| Parsons Corporation | 163 |
1 |
| Other owners | 20 |