- All sections
- E - Fixed constructions
- E04C - Structural elementsbuilding materials
- E04C 2/04 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like materialBuilding elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of asbestos cement
Patent holdings for IPC class E04C 2/04
Total number of patents in this class: 929
10-year publication summary
|
104
|
86
|
95
|
98
|
83
|
57
|
58
|
83
|
81
|
35
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| United States Gypsum Company | 927 |
95 |
| Georgia-Pacific Gypsum LLC | 225 |
60 |
| CertainTeed Gypsum, Inc. | 220 |
39 |
| Knauf Gips KG | 642 |
39 |
| Saint-Gobain Placo SAS | 162 |
37 |
| Yoshino Gypsum Co., Ltd. | 264 |
26 |
| Gold Bond Building Products, LLC | 195 |
24 |
| DDP Specialty Electronic Materials US, LLC | 851 |
16 |
| Owens Corning Intellectual Capital, LLC | 1725 |
14 |
| Saint-Gobain Placo | 274 |
13 |
| USG Interiors, LLC | 314 |
12 |
| Triton Mgo Products, LLC | 21 |
9 |
| Knauf Gips KG | 72 |
6 |
| Shaw & Sons, Inc. | 37 |
5 |
| Akamai Materials, Inc. | 11 |
5 |
| B.o. Base One Industries Limited | 5 |
5 |
| Arclin USA, LLC. | 95 |
4 |
| Kanaflex Corporation | 19 |
4 |
| Ahlstrom Oyj | 203 |
4 |
| Etex Building Performance International SAS | 78 |
4 |
| Other owners | 508 |