- 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: 830
10-year publication summary
|
76
|
87
|
103
|
85
|
95
|
98
|
83
|
56
|
53
|
26
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| United States Gypsum Company | 1019 |
91 |
| Georgia-Pacific Gypsum LLC | 204 |
53 |
| Knauf Gips KG | 534 |
34 |
| Saint-Gobain Placo SAS | 139 |
34 |
| CertainTeed Gypsum, Inc. | 180 |
32 |
| Yoshino Gypsum Co., Ltd. | 224 |
17 |
| DDP Specialty Electronic Materials US, LLC | 442 |
12 |
| Owens Corning Intellectual Capital, LLC | 1456 |
10 |
| Gold Bond Building Products, LLC | 162 |
10 |
| Mitek Holdings, Inc. | 250 |
9 |
| USG Interiors, LLC | 324 |
9 |
| Saint-Gobain Placo | 176 |
6 |
| NEXII Building Solutions Inc. | 52 |
6 |
| Lanxess Deutschland GmbH | 1104 |
5 |
| Shaw & Sons, Inc. | 36 |
5 |
| Kanaflex Corporation | 21 |
4 |
| Mortarless Technologies, LLC | 79 |
4 |
| OCV Intellectual Capital, LLC | 265 |
4 |
| Etex Building Performance International SAS | 61 |
4 |
| 360° Ballistics, LLC | 14 |
4 |
| Other owners | 477 |