- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 32/90 - Carbides
Patent holdings for IPC class C01B 32/90
Total number of patents in this class: 133
10-year publication summary
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4
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18
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12
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8
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11
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15
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18
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13
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20
|
9
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |