- All sections
- E - Fixed constructions
- E04F - Finishing work on buildings, e.g. stairs, floors
- E04F 13/04 - Bases for plaster
Patent holdings for IPC class E04F 13/04
Total number of patents in this class: 158
10-year publication summary
|
17
|
19
|
25
|
15
|
14
|
7
|
10
|
8
|
4
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| United States Gypsum Company | 905 |
20 |
| Knauf Gips KG | 611 |
11 |
| Saint-Gobain Adfors Canada, Ltd. | 65 |
6 |
| Mortar Net USA, Ltd., DBA Mortar Net Solutions | 6 |
5 |
| Louisiana-Pacific Corporation | 270 |
4 |
| Structa Wire Corp. | 14 |
4 |
| CertainTeed Gypsum, Inc. | 212 |
3 |
| E-Z Bead LLC | 20 |
3 |
| LATICRETE International, Inc. | 147 |
3 |
| Protektorwerk Florenz Maisch GmbH & Co. KG | 96 |
3 |
| Under-cover | 7 |
3 |
| Knauf Gips KG | 80 |
3 |
| ROCKWOOL International A/S | 299 |
3 |
| 3D Coatings GmbH & Co. KG | 9 |
3 |
| Shanghai Jianwei Cultural Heritage Conservation Tech. Co., Ltd | 22 |
3 |
| Mortar Net of Ohio, LLC | 29 |
3 |
| Disney Enterprises, Inc. | 6150 |
2 |
| Boral Stone Products LLC | 12 |
2 |
| Highland Technologies, LLC | 4 |
2 |
| International Paper Company | 783 |
2 |
| Other owners | 70 |