- 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: 139
10-year publication summary
|
4
|
18
|
12
|
8
|
11
|
15
|
18
|
13
|
20
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |