- All sections
- E - Fixed constructions
- E04C - Structural elementsbuilding materials
- E04C 3/20 - JoistsGirders, trusses, or truss-like structures, e.g. prefabricatedLintelsTransoms of concrete or other stone-like material, e.g. with reinforcements or tensioning members
Patent holdings for IPC class E04C 3/20
Total number of patents in this class: 78
10-year publication summary
|
7
|
10
|
9
|
11
|
10
|
10
|
7
|
3
|
7
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FSC Technologies, LLC | 6 |
3 |
| Samsung C&T Corporation | 190 |
3 |
| Inventio AG | 2384 |
2 |
| NV Bekaert SA | 744 |
2 |
| Quickcell Technology Pty Ltd | 3 |
2 |
| Ruentex Engineering & Construction Co., Ltd. | 32 |
2 |
| South China University of Technology | 1797 |
2 |
| Southeast University | 1433 |
2 |
| Global Energy Sciences, LLC | 8 |
2 |
| Inner Mongolia University of Technology | 66 |
2 |
| ABT, Inc. | 96 |
1 |
| Anchor Wall Systems, Inc. | 183 |
1 |
| Associated Valaire Pty Ltd | 1 |
1 |
| BlueScope Steel Limited | 208 |
1 |
| Bröderna Bengtssons Dumpertransport AB | 4 |
1 |
| China University of Mining and Technology | 1265 |
1 |
| Conseil Service Investissements | 3 |
1 |
| Constructive, L.L.C. | 4 |
1 |
| CSR Building Products Limited | 48 |
1 |
| Danmarks Tekniske Universitet | 977 |
1 |
| Other owners | 46 |