- All sections
- E - Fixed constructions
- E01D - Bridges
- E01D 2/04 - Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
Patent holdings for IPC class E01D 2/04
Total number of patents in this class: 79
10-year publication summary
|
3
|
3
|
4
|
2
|
4
|
8
|
12
|
9
|
9
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hunan University | 153 |
5 |
| Inquik IP Holdings Pty Ltd | 11 |
4 |
| Valmont Industries, Inc. | 444 |
3 |
| Kollegger GmbH | 8 |
3 |
| Shandong Luqiao Group Co., Ltd. | 6 |
2 |
| Wuyi University | 344 |
2 |
| China Railway Siyuan Survey and Design Group Co., Ltd. | 69 |
2 |
| Road & Bridge International Co., Ltd. | 19 |
2 |
| China Railway Seventh Group Co., Ltd | 22 |
2 |
| Georgia Tech Research Corporation | 2744 |
1 |
| ArcelorMittal | 2293 |
1 |
| The Florida International University Board of Trustees | 622 |
1 |
| Korea Expressway Corporation | 15 |
1 |
| Matiere | 10 |
1 |
| Max Bogl Bauunternehmung GmbH & Co. KG | 23 |
1 |
| NUtech Ventures | 337 |
1 |
| Omega Trestle LLC | 11 |
1 |
| Pontemar AS | 3 |
1 |
| Roads and Maritime Services | 7 |
1 |
| Rubrica Ingenieria y Arquitectura, S.L. | 12 |
1 |
| Other owners | 43 |