- All sections
- E - Fixed constructions
- E04B - General building constructionswalls, e.g. partitionsroofsfloorsceilingsinsulation or other protection of buildings
- E04B 2/54 - Walls having cavities between, as well as in, the elementsWalls of elements each consisting of two or more parts, kept in distance by means of spacers, at least one of the parts having cavities the walls being characterised by fillings in all cavities in order to form a wall construction
Patent holdings for IPC class E04B 2/54
Total number of patents in this class: 36
10-year publication summary
|
10
|
9
|
4
|
4
|
5
|
3
|
3
|
2
|
3
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Masonite Corporation | 683 |
4 |
| Covestro LLC | 617 |
3 |
| Dean Holding Corporation | 14 |
2 |
| Jensen, David I. | 5 |
2 |
| Solena SRL | 3 |
2 |
| Hertel Technical Services Limited | 1 |
1 |
| Hohmann & Barnard, Incorporated | 129 |
1 |
| Hunter Douglas N.V. | 2 |
1 |
| King Saud University | 523 |
1 |
| Onx, Inc. | 32 |
1 |
| Polycrete International Inc. | 8 |
1 |
| Poundfield Products Limited | 3 |
1 |
| Precision Design LLC | 4 |
1 |
| Spherical Block LLC | 9 |
1 |
| Stone Strong LLC | 9 |
1 |
| Dean Holding Co | 1 |
1 |
| Iida Group Holdings Co., Ltd. | 13 |
1 |
| Brickworks Building Products Pty Ltd. | 8 |
1 |
| KLD IP Holdings, LLC | 31 |
1 |
| Brieke Family Assets Ltd. | 1 |
1 |
| Other owners | 8 |