- 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: 235
10-year publication summary
|
32
|
29
|
22
|
23
|
27
|
24
|
18
|
20
|
8
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Electric Industries, Ltd. | 16061 |
37 |
| Sumitomo Electric Hardmetal Corp. | 1074 |
15 |
| Daicel Corporation | 2452 |
9 |
| Element Six Technologies Limited | 203 |
7 |
| West Virginia University Research Corporation | 17 |
6 |
| Impossible Diamond, Inc. | 18 |
6 |
| Diamond Innovations, Inc. | 234 |
5 |
| North Carolina State University | 1582 |
5 |
| SF Diamond Co.,Ltd. | 32 |
5 |
| Baker Hughes Holdings LLC | 2981 |
5 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10975 |
4 |
| UChicago Argonne, LLC | 939 |
4 |
| The University of Chicago | 1466 |
4 |
| Eagle Technology, LLC | 391 |
4 |
| Applied Materials, Inc. | 19938 |
3 |
| Carbodeon Ltd Oy | 27 |
3 |
| Element Six Limited | 120 |
3 |
| Yanshan University | 157 |
3 |
| Samsung Electronics Co., Ltd. | 153093 |
2 |
| The Regents of the University of California | 20473 |
2 |
| Other owners | 103 |