- All sections
- E - Fixed constructions
- E04C - Structural elements; building materials
- E04C 3/20 - Joists; Girders, trusses, or truss-like structures, e.g. prefabricated; Lintels; Transoms 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: 64
10-year publication summary
|
10
|
8
|
10
|
10
|
14
|
11
|
10
|
6
|
3
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FSC Technologies, LLC | 9 |
4 |
| Inventio AG | 2314 |
2 |
| NV Bekaert SA | 750 |
2 |
| Quickcell Technology Pty Ltd | 3 |
2 |
| Southeast University | 1148 |
2 |
| Global Energy Sciences, LLC | 9 |
2 |
| Samsung C&T Corporation | 160 |
2 |
| ABT, Inc. | 94 |
1 |
| Anchor Wall Systems, Inc. | 227 |
1 |
| Associated Valaire Pty Ltd | 1 |
1 |
| BlueScope Steel Limited | 223 |
1 |
| Bröderna Bengtssons Dumpertransport AB | 4 |
1 |
| Castelli, Settimio | 1 |
1 |
| China University of Mining and Technology | 1189 |
1 |
| Conseil Service Investissements | 3 |
1 |
| Constructive, L.L.C. | 4 |
1 |
| CSR Building Products Limited | 49 |
1 |
| Danmarks Tekniske Universitet | 902 |
1 |
| Filigran Tragersysteme GmbH & Co. KG | 17 |
1 |
| Fujita Corporation | 40 |
1 |
| Other owners | 35 |