- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 41/71 - Coating or impregnating for obtaining at least two superposed coatings having different compositions at least one coating being an organic material
Patent holdings for IPC class C04B 41/71
Total number of patents in this class: 74
10-year publication summary
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3
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4
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5
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4
|
3
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5
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8
|
4
|
5
|
6
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Axalta Coating Systems IP Co., LLC | 477 |
6 |
| Knauf Gips KG | 607 |
6 |
| Valspar Sourcing, Inc. | 339 |
5 |
| Eternit GmbH | 10 |
5 |
| James Hardie Technology Limited | 459 |
4 |
| Keiwa Inc. | 188 |
4 |
| Valspar Holdings I, Inc. | 33 |
4 |
| LEONHARD KURZ Stiftung & Co. KG | 393 |
3 |
| Nichiha Corporation | 177 |
3 |
| BASF SE | 20979 |
2 |
| Lafarge | 128 |
2 |
| Sika Technology AG | 2875 |
2 |
| Wobben Properties GmbH | 1219 |
2 |
| The Sherwin-Williams Company | 538 |
1 |
| Dow Global Technologies LLC | 10402 |
1 |
| Showa Denko K.K. | 2204 |
1 |
| PPG Industries Ohio, Inc. | 3443 |
1 |
| Changjiang River Scientific Research Institute, Changjiang Water Resources Commission | 5 |
1 |
| Engineered Polymer Solutions, Inc. (a Delaware corporation) | 145 |
1 |
| FibreCem Holding AG | 3 |
1 |
| Other owners | 19 |