- All sections
- E - Fixed constructions
- E04C - Structural elementsbuilding materials
- E04C 2/52 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with special adaptations for auxiliary purposes, e.g. serving for locating conduits
Patent holdings for IPC class E04C 2/52
Total number of patents in this class: 596
10-year publication summary
|
65
|
76
|
69
|
72
|
47
|
49
|
49
|
45
|
54
|
19
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Innovative Building Technologies, LLC | 68 |
16 |
| Zengcheng City Country Garden Property Development Company Limited | 67 |
14 |
| CertainTeed Gypsum, Inc. | 209 |
8 |
| Reliance Worldwide Corporation | 329 |
8 |
| Louisiana-Pacific Corporation | 265 |
7 |
| Specified Technologies Inc. | 82 |
7 |
| Georgia-Pacific Gypsum LLC | 217 |
6 |
| DIRTT Environmental Solutions, Ltd. | 308 |
6 |
| Steelcase Inc. | 1335 |
6 |
| Gold Bond Building Products, LLC | 194 |
6 |
| AFI Licensing LLC | 231 |
5 |
| Armstrong World Industries, Inc. | 351 |
5 |
| Knauf Gips KG | 607 |
5 |
| Saint-Gobain Placo | 229 |
5 |
| United States Gypsum Company | 907 |
5 |
| Innovative Structural Building Products, LLC | 8 |
5 |
| Hilti Aktiengesellschaft | 3506 |
4 |
| Beele Engineering B.V. | 139 |
4 |
| Framery Oy | 76 |
4 |
| Google LLC | 42540 |
4 |
| Other owners | 466 |