- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 7/30 - Cements from oil shales, residues or waste other than slag from oil shaleCements from oil shales, residues or waste other than slag from oil shale residues
Patent holdings for IPC class C04B 7/30
Total number of patents in this class: 11
10-year publication summary
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2
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0
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0
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0
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1
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0
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1
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0
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2
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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
|
|---|---|---|
| Investment for Oily Shale Technologies Co. Ltd. | 3 |
2 |
| Outotec Oyj | 280 |
2 |
| Envicore Inc. | 12 |
2 |
| Ecoloop GmbH | 22 |
1 |
| Luzhou Landlong Cement Co., Ltd. | 2 |
1 |
| Syncrude Canada Ltd. | 83 |
1 |
| Ariel Scientific Innovations Ltd | 209 |
1 |
| Metso Metals Oy | 23 |
1 |
| Other owners | 0 |