- All sections
- E - Fixed constructions
- E04B - General building constructionswalls, e.g. partitionsroofsfloorsceilingsinsulation or other protection of buildings
- E04B 2/52 - 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 some of the cavities forming load-bearing pillars or beams
Patent holdings for IPC class E04B 2/52
Total number of patents in this class: 19
10-year publication summary
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2
|
4
|
2
|
3
|
4
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6
|
2
|
2
|
1
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Intelligent City Inc. | 19 |
2 |
| Toyota Motor Corporation | 32681 |
1 |
| Geovent LLC | 1 |
1 |
| Innovative Building Technologies, LLC | 68 |
1 |
| Insite Manufacturing Pty Ltd | 2 |
1 |
| J.F.R. Enterprises, Inc. | 18 |
1 |
| Kingspan Research and Developments Limited | 33 |
1 |
| Max-Block Development L.L.C. | 7 |
1 |
| Iida Group Holdings Co., Ltd. | 10 |
1 |
| Aster Co., Ltd. | 50 |
1 |
| Brieke Family Assets Ltd. | 1 |
1 |
| Iso-air Investments Pty Ltd | 1 |
1 |
| Solid Green Development, LLC | 1 |
1 |
| Xi'an University of Architecture and Technology | 53 |
1 |
| Bettina Ingrid Brieke | 1 |
1 |
| Malcolm John Paul Wright | 1 |
1 |
| Agence Nationale pour La Gestion des Déchets Radioactifs (andra) | 2 |
1 |
| Yigit, Mehmet | 1 |
1 |
| Other owners | 0 |