- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 32/25 - Diamond
Patent holdings for IPC class C01B 32/25
Total number of patents in this class: 231
10-year publication summary
|
14
|
34
|
31
|
24
|
26
|
27
|
24
|
18
|
21
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Electric Industries, Ltd. | 15428 |
37 |
| Sumitomo Electric Hardmetal Corp. | 1019 |
15 |
| Daicel Corporation | 2335 |
9 |
| Element Six Technologies Limited | 192 |
6 |
| West Virginia University Research Corporation | 18 |
6 |
| Impossible Diamond, Inc. | 18 |
6 |
| Diamond Innovations, Inc. | 235 |
5 |
| North Carolina State University | 1559 |
5 |
| SF Diamond Co.,Ltd. | 32 |
5 |
| Baker Hughes Holdings LLC | 3004 |
5 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10924 |
4 |
| UChicago Argonne, LLC | 912 |
4 |
| The University of Chicago | 1400 |
4 |
| Applied Materials, Inc. | 18530 |
3 |
| Carbodeon Ltd Oy | 27 |
3 |
| Element Six Limited | 119 |
3 |
| Yanshan University | 149 |
3 |
| Eagle Technology, LLC | 355 |
3 |
| Samsung Electronics Co., Ltd. | 145416 |
2 |
| The Regents of the University of California | 19868 |
2 |
| Other owners | 101 |