- All sections
- E - Fixed constructions
- E04C - Structural elements; building materials
- E04C 3/38 - Arched girders or portal frames
Patent holdings for IPC class E04C 3/38
Total number of patents in this class: 25
10-year publication summary
|
2
|
5
|
3
|
4
|
2
|
2
|
2
|
2
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Simpson Strong-Tie Company, Inc. | 680 |
3 |
| Pibridge Ltd | 7 |
2 |
| Ojjo, Inc. | 108 |
2 |
| Thales SA | 2318 |
1 |
| Dynamic Shelters Inc. | 15 |
1 |
| The European Union, represented by The European Commission | 225 |
1 |
| Fox Hardwood Lumber Company, L.L.C. | 39 |
1 |
| Gossamer Space Frames | 14 |
1 |
| PABCO Building Products, LLC | 9 |
1 |
| Pacific Coast Building Products, Inc. | 129 |
1 |
| Sener, Ingenieria y Sistemas, S.A. | 46 |
1 |
| Sioux Steel Company | 90 |
1 |
| Thomas Gerard Langmeier | 1 |
1 |
| Universita degli Studi di Salerno | 56 |
1 |
| Marywood University | 5 |
1 |
| Engineering Innovations Group Pty Limited | 4 |
1 |
| Macrotec Holdings Pty Ltd | 1 |
1 |
| Marte and Marte Limited Zweigniederlassung Österreich | 1 |
1 |
| Trussed Systems Limited | 4 |
1 |
| Neographic Digital | 1 |
1 |
| Other owners | 1 |