- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 111/27 - Water resistance, i.e. waterproof or water-repellent materials
Patent holdings for IPC class C04B 111/27
Total number of patents in this class: 283
10-year publication summary
|
24
|
14
|
22
|
21
|
22
|
22
|
27
|
26
|
23
|
14
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sika Technology AG | 3002 |
15 |
| United States Gypsum Company | 923 |
12 |
| Knauf Gips KG | 642 |
9 |
| BASF SE | 21303 |
8 |
| Georgia-Pacific Gypsum LLC | 225 |
8 |
| Wacker Chemie AG | 2110 |
8 |
| Henkel AG & Co. KGaA | 10770 |
6 |
| Etex Services NV | 59 |
5 |
| Dow Silicones Corporation | 2109 |
5 |
| Dow Global Technologies LLC | 10930 |
4 |
| Owens Corning Intellectual Capital, LLC | 1722 |
4 |
| Imam Abdulrahman Bin Faisal University | 611 |
4 |
| Evonik Operations GmbH | 4336 |
4 |
| China National Building Materials Technological Innovation & Research Institute Limited Company | 75 |
4 |
| Ubiq Technology Pty Ltd | 9 |
4 |
| Kohler Co. | 4136 |
3 |
| BPB Limited | 44 |
3 |
| Eternit N.V. | 39 |
3 |
| GCP Applied Technologies Inc. | 473 |
3 |
| Johns Manville | 920 |
3 |
| Other owners | 168 |