- All sections
- E - Fixed constructions
- E04C - Structural elementsbuilding materials
- E04C 3/46 - Arched girders or portal frames of materials not covered by groups Arched girders or portal frames of a combination of two or more materials
Patent holdings for IPC class E04C 3/46
Total number of patents in this class: 18
10-year publication summary
|
1
|
3
|
5
|
3
|
1
|
2
|
2
|
1
|
1
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sunbelt Rentals, Inc. | 88 |
3 |
| Pibridge Ltd | 6 |
3 |
| Universita degli Studi di Roma "La Sapienza" | 221 |
2 |
| Dynamic Shelters Inc. | 14 |
1 |
| Technische Universiteit Delft | 738 |
1 |
| Tendeg LLC | 20 |
1 |
| Universiteit Gent | 1355 |
1 |
| Zepelin, s.r.o. | 15 |
1 |
| Seoul National University R&db Foundation | 3725 |
1 |
| Aria Domus S.L. | 1 |
1 |
| Guangzhou Municipal Engineering Design and Research Institute Co., Ltd. | 1 |
1 |
| Rippleaffect Trust Limited | 2 |
1 |
| Micro Building Limited | 1 |
1 |
| Other owners | 0 |