- All sections
- E - Fixed constructions
- E04C - Structural elements; building 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 asbestos cement
Patent holdings for IPC class E04C 2/04
Total number of patents in this class: 866
10-year publication summary
|
87
|
104
|
86
|
95
|
98
|
83
|
56
|
54
|
73
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| United States Gypsum Company | 999 |
96 |
| Georgia-Pacific Gypsum LLC | 210 |
53 |
| CertainTeed Gypsum, Inc. | 200 |
35 |
| Saint-Gobain Placo SAS | 141 |
35 |
| Knauf Gips KG | 563 |
34 |
| Yoshino Gypsum Co., Ltd. | 238 |
21 |
| DDP Specialty Electronic Materials US, LLC | 755 |
14 |
| Gold Bond Building Products, LLC | 180 |
12 |
| Mitek Holdings, Inc. | 250 |
10 |
| Owens Corning Intellectual Capital, LLC | 1554 |
10 |
| USG Interiors, LLC | 315 |
10 |
| Saint-Gobain Placo | 196 |
9 |
| Lanxess Deutschland GmbH | 1117 |
5 |
| Shaw & Sons, Inc. | 38 |
5 |
| NEXII Building Solutions Inc. | 45 |
5 |
| Kanaflex Corporation | 20 |
4 |
| Mortarless Technologies, LLC | 80 |
4 |
| OCV Intellectual Capital, LLC | 202 |
4 |
| Etex Building Performance International SAS | 67 |
4 |
| 360° Ballistics, LLC | 15 |
4 |
| Other owners | 492 |