- All sections
- E - Fixed constructions
- E04B - General building constructionswalls, e.g. partitionsroofsfloorsceilingsinsulation or other protection of buildings
- E04B 2/20 - Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element using elements having specially designed means for stabilising the position by filling material with or without reinforcements in small channels in, or in grooves between, the elements
Patent holdings for IPC class E04B 2/20
Total number of patents in this class: 32
10-year publication summary
|
6
|
8
|
2
|
6
|
4
|
1
|
4
|
3
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Constructive, L.L.C. | 4 |
2 |
| Keystone Retaining Wall Systems LLC | 194 |
2 |
| Valinge Innovation AB | 1028 |
2 |
| Max-Block Development L.L.C. | 5 |
2 |
| Valeurs Alpines | 5 |
2 |
| Blockaid Pty Ltd | 5 |
1 |
| Construction & Design Solutions, Inc. | 6 |
1 |
| Geo-hidrol, S.A. | 5 |
1 |
| Mcmaster University | 833 |
1 |
| Rensselaer Polytechnic Institute | 850 |
1 |
| Tekno Design s.r.o. | 1 |
1 |
| Vehicle Service Group, LLC | 162 |
1 |
| Iida Group Holdings Co., Ltd. | 13 |
1 |
| Shenzhen New Tenon Co., Ltd. | 4 |
1 |
| Gregory Buccola | 1 |
1 |
| L. Destouches | 1 |
1 |
| TS—Rebar Holding, LLC | 3 |
1 |
| Alexander Innovations, LLC | 6 |
1 |
| Ancomap Dos, S.L. | 1 |
1 |
| Iso-air Investments Pty Ltd | 1 |
1 |
| Other owners | 7 |