- All sections
- E - Fixed constructions
- E01D - Bridges
- E01D 21/06 - Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
Patent holdings for IPC class E01D 21/06
Total number of patents in this class: 80
10-year publication summary
|
3
|
7
|
3
|
10
|
4
|
8
|
5
|
15
|
7
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ArcelorMittal | 2187 |
11 |
| PERI SE | 402 |
7 |
| Western Mechanical Electrical Millwright Services Limited | 4 |
3 |
| Bright Structures Ltd | 5 |
3 |
| ArcelorMittal | 4 |
3 |
| Korea Railroad Research Institute | 177 |
2 |
| PERI GmbH | 180 |
2 |
| Soletanche Freyssinet | 476 |
2 |
| Southeast University | 1384 |
2 |
| Universidad de Oviedo | 56 |
2 |
| Universidad de Cantabria | 69 |
2 |
| Kollegger GmbH | 8 |
2 |
| Shandonghengkun Machinery Co, Ltd | 14 |
2 |
| Nikon Corporation | 7152 |
1 |
| The United States of America as represented by the Secretary of the Army | 1198 |
1 |
| Acciona Infraestructuras, S.A. | 13 |
1 |
| Beijing Wowjoint Machinery Co. | 1 |
1 |
| China Zhongtie Major Bridge Engineering Group Co., Ltd. | 3 |
1 |
| Guangxi University | 80 |
1 |
| Max Bogl Bauunternehmung GmbH & Co. KG | 26 |
1 |
| Other owners | 30 |