- All sections
- C - Chemistrymetallurgy
- C09C - Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling propertiespreparation of carbon black
- C09C 1/52 - Channel black
Patent holdings for IPC class C09C 1/52
Total number of patents in this class: 17
10-year publication summary
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0
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3
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3
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1
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0
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2
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0
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0
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0
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2
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Evonik Carbon Black GmbH | 30 |
4 |
| Cabot Corporation | 551 |
4 |
| Monolith Materials, Inc. | 125 |
3 |
| Living Ink Technologies, LLC | 7 |
2 |
| Black Bear Carbon B.V. | 14 |
1 |
| IFP Energies Nouvelles | 2942 |
1 |
| Intelli Particle Pty Ltd | 6 |
1 |
| Idrogena SRL | 3 |
1 |
| Other owners | 0 |