- All sections
- E - Fixed constructions
- E04C - Structural elements; building 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: 594
10-year publication summary
|
69
|
84
|
73
|
76
|
53
|
58
|
53
|
47
|
53
|
2
|
| 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. | 200 |
8 |
| Reliance Worldwide Corporation | 319 |
8 |
| Armstrong World Industries, Inc. | 350 |
7 |
| Louisiana-Pacific Corporation | 225 |
7 |
| Specified Technologies Inc. | 80 |
7 |
| Georgia-Pacific Gypsum LLC | 210 |
6 |
| DIRTT Environmental Solutions, Ltd. | 319 |
6 |
| Steelcase Inc. | 1332 |
6 |
| Knauf Gips KG | 563 |
5 |
| Saint-Gobain Placo | 196 |
5 |
| United States Gypsum Company | 999 |
5 |
| Innovative Structural Building Products, LLC | 8 |
5 |
| Veev Group, Inc. | 41 |
5 |
| Hilti Aktiengesellschaft | 3363 |
4 |
| Beele Engineering B.V. | 143 |
4 |
| Google LLC | 40708 |
4 |
| Kingspan Research and Developments Limited | 37 |
4 |
| Norwood Architecture, Inc. | 33 |
4 |
| Other owners | 464 |