- All sections
- E - Fixed constructions
- E04C - Structural elementsbuilding materials
- E04C 1/00 - Building elements of block or other shape for the construction of parts of buildings
Patent holdings for IPC class E04C 1/00
Total number of patents in this class: 493
10-year publication summary
|
61
|
57
|
58
|
25
|
33
|
30
|
17
|
15
|
11
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| UNILIN, besloten vennootschap | 905 |
27 |
| Keystone Retaining Wall Systems LLC | 207 |
25 |
| Anchor Wall Systems, Inc. | 182 |
16 |
| Pavestone, LLC | 78 |
16 |
| Les Materiaux de Construction Oldcastle Canada Inc. | 26 |
9 |
| Oldcastle Building Products Canada, Inc. | 172 |
9 |
| DDP Specialty Electronic Materials US, LLC | 843 |
9 |
| James Hardie Technology Limited | 465 |
7 |
| RISI Stone Inc. | 49 |
7 |
| Just Biofiber Corp. | 6 |
6 |
| Oldcastle Architectural, Inc. | 19 |
6 |
| Covestro LLC | 593 |
5 |
| ISO-Chemie GmbH | 49 |
5 |
| Renco World Corporation | 15 |
5 |
| The Boeing Company | 20163 |
4 |
| Amvic Inc. | 23 |
4 |
| Plastpro 2000, Inc. | 29 |
4 |
| Oldcastle Building Products Canada, Inc. / Les Materiaux de Constructionoldcastle Canada, Inc. | 5 |
4 |
| Massachusetts Institute of Technology | 10143 |
3 |
| CertainTeed Corporation | 227 |
3 |
| Other owners | 319 |