- All sections
- E - Fixed constructions
- E04B - General building constructions; walls, e.g. partitions; roofs; floors; ceilings; insulation or other protection of buildings
- E04B 2/04 - Walls having neither cavities between, nor in, the solid elements
Patent holdings for IPC class E04B 2/04
Total number of patents in this class: 39
10-year publication summary
|
2
|
7
|
5
|
3
|
7
|
5
|
5
|
4
|
4
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Anchor Wall Systems, Inc. | 227 |
6 |
| Keystone Retaining Wall Systems LLC | 228 |
5 |
| Fastbrick IP Pty Ltd | 98 |
4 |
| Covestro LLC | 577 |
2 |
| Les Materiaux de Construction Oldcastle Canada Inc. | 28 |
2 |
| Stytek LLC | 3 |
2 |
| Blue Tomato, LLC | 18 |
1 |
| BlueScope Steel Limited | 223 |
1 |
| Convergent Market Research, Inc. | 9 |
1 |
| Gram Engineering Pty Ltd | 10 |
1 |
| JK Worldwide Enterprises Inc. | 9 |
1 |
| Oldcastle Building Products Canada, Inc. | 169 |
1 |
| Simpson Strong-Tie Company, Inc. | 583 |
1 |
| Triple-IN Holding AG | 3 |
1 |
| Saint-Gobain Construction Poducts UK Limited | 1 |
1 |
| Tabiclick, S.L. | 2 |
1 |
| Kim Eun Young | 2 |
1 |
| Modvion AB | 19 |
1 |
| WEBER, Lucie | 1 |
1 |
| Chifeng Huiyuan Building Materials Co., Ltd | 2 |
1 |
| Other owners | 4 |