- All sections
- E - Fixed constructions
- E04B - General building constructions; walls, e.g. partitions; roofs; floors; ceilings; insulation or other protection of buildings
- E04B 2/18 - 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 interlocking of projections or inserts with indentations, e.g. of tongues, grooves, dovetails
Patent holdings for IPC class E04B 2/18
Total number of patents in this class: 190
10-year publication summary
|
23
|
18
|
17
|
32
|
25
|
27
|
20
|
22
|
16
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Renco World Corporation | 15 |
10 |
| Max-Block Development L.L.C. | 9 |
6 |
| Oldcastle Architectural, Inc. | 23 |
5 |
| Schofield Technologies, Inc. | 17 |
4 |
| Anchor Wall Systems, Inc. | 227 |
3 |
| Blasch Precision Ceramics, Inc. | 36 |
3 |
| Fastbrick IP Pty Ltd | 98 |
3 |
| Keystone Retaining Wall Systems LLC | 228 |
3 |
| Solumix | 4 |
3 |
| Grundland Farace, Eduardo Alberto | 3 |
3 |
| WES Tec Global Co., Ltd. | 5 |
3 |
| Associação Blc3 - Campus de Tecnologia e Inovação | 8 |
3 |
| Associação Cecolab - Collaborative Laboratory Towards Circular Economy | 4 |
3 |
| The Regents of the University of Michigan | 4409 |
2 |
| 3B Construction Solutions, Inc. | 5 |
2 |
| Block Florida, LLC | 2 |
2 |
| Dean Holding Corporation | 15 |
2 |
| E. Dillon & Company | 36 |
2 |
| Hobi Endustriyel Urun Tasarim Uygulama Uretim Ithalat Ihracat Limited Sirketi | 3 |
2 |
| Precision Design LLC | 4 |
2 |
| Other owners | 124 |