- All sections
- E - Fixed constructions
- E04B - General building constructionswalls, e.g. partitionsroofsfloorsceilingsinsulation or other protection of buildings
- E04B 1/30 - Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materialsComposite steel and concrete constructions
Patent holdings for IPC class E04B 1/30
Total number of patents in this class: 180
10-year publication summary
|
21
|
16
|
27
|
10
|
23
|
15
|
17
|
16
|
17
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qingdao University of Technology | 614 |
16 |
| Senvex Co., Ltd. | 22 |
7 |
| Elevate Structures, LLC | 8 |
6 |
| Diversakore LLC | 14 |
5 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
5 |
| JFE Steel Corporation | 6849 |
4 |
| Peikko Group Oy | 171 |
4 |
| Vega Building Systems LLC | 9 |
4 |
| Atricon AB | 11 |
4 |
| Corebrace, LLC | 10 |
3 |
| Hainan University | 161 |
3 |
| Jack Walters & Sons, Corp. | 15 |
3 |
| Ruentex Engineering & Construction Co., Ltd. | 32 |
3 |
| Senvex | 8 |
3 |
| Architectural Design and Research Institute of Tsinghua University Co., Ltd. | 4 |
2 |
| Cross Structural Consultant Co., Ltd. | 3 |
2 |
| Diversakore Holdings, LLC | 6 |
2 |
| Fujita Corporation | 40 |
2 |
| Goliathtech Inc. | 50 |
2 |
| Kurosawa Construction Co., Ltd. | 9 |
2 |
| Other owners | 98 |