- All sections
- E - Fixed constructions
- E04F - Finishing work on buildings, e.g. stairs, floors
- E04F 13/02 - Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
Patent holdings for IPC class E04F 13/02
Total number of patents in this class: 134
10-year publication summary
|
13
|
12
|
11
|
6
|
14
|
7
|
9
|
8
|
10
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Yoshino Gypsum Co., Ltd. | 264 |
6 |
| Sika Technology AG | 3004 |
5 |
| United States Gypsum Company | 927 |
5 |
| Wellington Investment Corporation | 8 |
5 |
| O'daniels, LLC. | 62 |
5 |
| Knauf Gips KG | 642 |
3 |
| Prime Forming & Construction Supplies, Inc. | 22 |
3 |
| 3m Innovative Properties Company | 17478 |
2 |
| Armstrong World Industries, Inc. | 368 |
2 |
| CertainTeed Gypsum, Inc. | 220 |
2 |
| Ceves Vergeer B.V. | 9 |
2 |
| E-Z Bead LLC | 20 |
2 |
| KMEW Co., Ltd. | 49 |
2 |
| Onx, Inc. | 33 |
2 |
| Shenzhen Grandland Decoration Group Co., Ltd. | 4 |
2 |
| Studco Building Systems US, LLC | 58 |
2 |
| Toto Ltd. | 1259 |
2 |
| Wacker Chemie AG | 2112 |
2 |
| Suzhou Hongni New-material Technology Ltd., Co. | 2 |
2 |
| Guangxi Siwei Materials Technology Co., Ltd. | 4 |
2 |
| Other owners | 76 |