- All sections
- E - Fixed constructions
- E01D - Bridges
- E01D 19/00 - Details of bridges
Patent holdings for IPC class E01D 19/00
Total number of patents in this class: 222
10-year publication summary
|
14
|
24
|
15
|
20
|
25
|
22
|
22
|
31
|
22
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dalian University of Technology | 1517 |
10 |
| ArcelorMittal | 2272 |
7 |
| Safe Rack LLC | 51 |
7 |
| Contech Engineered Solutions LLC | 278 |
6 |
| Hunan University | 151 |
5 |
| Shandong University | 1035 |
5 |
| VSL International AG | 87 |
5 |
| Shenyang University of Technology | 33 |
4 |
| CCCC Highway Bridges National Engineering Research Center Co., Ltd. | 23 |
4 |
| PPG Industries Ohio, Inc. | 3457 |
3 |
| Dywidag-Systems International GmbH | 75 |
3 |
| Fuzhou University | 313 |
3 |
| Soletanche Freyssinet | 477 |
3 |
| Qingdao University of Technology | 610 |
3 |
| China Tiesiju Civil Engineering Group Co., Ltd. | 30 |
3 |
| Central South University | 434 |
2 |
| Composites Intellectual Holdings, Inc. | 25 |
2 |
| FiberCore IP B.V. | 26 |
2 |
| Flatiron Constructors, Inc. | 7 |
2 |
| The Florida International University Board of Trustees | 610 |
2 |
| Other owners | 141 |