- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 11/05 - Calcium sulfate cements obtaining anhydrite
Patent holdings for IPC class C04B 11/05
Total number of patents in this class: 9
10-year publication summary
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1
|
0
|
0
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1
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0
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1
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2
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0
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0
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Betolar Oy | 22 |
2 |
| Gypsmix SARL | 3 |
2 |
| Columbeanu, ION | 1 |
1 |
| Hyundai Oilbank Co., Ltd. | 19 |
1 |
| K and Co | 1 |
1 |
| Beijing New Building Materials Public Limited Company | 97 |
1 |
| Nanjing Kisen International Engineering Co., Ltd. | 16 |
1 |
| Other owners | 0 |