- 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: 87
10-year publication summary
|
6
|
3
|
8
|
4
|
8
|
5
|
10
|
7
|
8
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ArcelorMittal | 2510 |
16 |
| PERI SE | 448 |
8 |
| Western Mechanical Electrical Millwright Services Limited | 4 |
3 |
| Bright Structures Ltd | 5 |
3 |
| Korea Railroad Research Institute | 178 |
2 |
| PERI GmbH | 165 |
2 |
| Soletanche Freyssinet | 494 |
2 |
| Southeast University | 1504 |
2 |
| Universidad de Oviedo | 56 |
2 |
| Universidad de Cantabria | 70 |
2 |
| Kollegger GmbH | 10 |
2 |
| Shandonghengkun Machinery Co, Ltd | 14 |
2 |
| Poly Changda Engineering Co., Ltd. | 4 |
2 |
| Nikon Corporation | 7256 |
1 |
| The United States of America as represented by the Secretary of the Army | 1236 |
1 |
| Acciona Infraestructuras, S.A. | 13 |
1 |
| Beijing Wowjoint Machinery Co. | 1 |
1 |
| China Zhongtie Major Bridge Engineering Group Co., Ltd. | 3 |
1 |
| CMI Terex Corporation | 13 |
1 |
| Guangxi University | 85 |
1 |
| Other owners | 32 |