- All sections
- E - Fixed constructions
- E04C - Structural elementsbuilding materials
- E04C 3/32 - ColumnsPillarsStruts of metal
Patent holdings for IPC class E04C 3/32
Total number of patents in this class: 234
10-year publication summary
|
29
|
31
|
35
|
32
|
31
|
27
|
21
|
16
|
21
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cemco, LLC | 127 |
10 |
| JFE Steel Corporation | 6974 |
8 |
| Bull Moose Tube Company | 13 |
7 |
| Mitek Holdings, Inc. | 252 |
7 |
| Porta-Fab Corporation | 13 |
6 |
| Senqcia Corporation | 36 |
5 |
| Stonelake Pty Ltd | 10 |
5 |
| Telling Industries, LLC | 17 |
5 |
| Tower Solutions, LLC | 22 |
5 |
| Fortress Iron, LP | 86 |
4 |
| Jiangsu Huning Steel; Mechanism Co., Ltd | 13 |
4 |
| Nippon Steel Corporation | 6396 |
4 |
| Sunbelt Rentals, Inc. | 88 |
4 |
| China Construction Science & Technology Group Co., Ltd. | 28 |
4 |
| Donovan Group Holdings Limited | 20 |
4 |
| Atlantic Industries Limited | 6 |
3 |
| Behr Process Corporation | 192 |
3 |
| Herron Intellectual Property Holdings, LLC | 5 |
3 |
| King Saud University | 426 |
3 |
| Knauf Gips KG | 609 |
3 |
| Other owners | 137 |