- All sections
- C - Chemistry; metallurgy
- C30B - Single-crystal growth; unidirectional solidification of eutectic material or unidirectional demixing of eutectoid material; refining by zone-melting of material; production of a homogeneous polycrystalline material with defined structure; single crystals or homogeneous polycrystalline material with defined structure; after-treatment of single crystals or a homogeneous polycrystalline material with defined structure; apparatus therefor
- C30B 29/04 - Diamond
Patent holdings for IPC class C30B 29/04
Total number of patents in this class: 834
10-year publication summary
|
42
|
62
|
51
|
48
|
62
|
78
|
49
|
60
|
72
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Element Six Technologies Limited | 187 |
89 |
| Sumitomo Electric Industries, Ltd. | 14914 |
88 |
| Element Six Limited | 82 |
37 |
| National Institute of Advanced Industrial Science and Technology | 3727 |
35 |
| Sumitomo Electric Hardmetal Corp. | 1005 |
30 |
| Shin-Etsu Chemical Co., Ltd. | 5437 |
26 |
| Carnegie Institution of Washington | 69 |
11 |
| Diamond Innovations, Inc. | 236 |
10 |
| Board of Trustees of Michigan State University | 1152 |
8 |
| North Carolina State University | 1522 |
8 |
| IIA Technologies Pte. Ltd. | 15 |
8 |
| M7d Corporation | 11 |
8 |
| Advanced Diamond Holdings, LLC | 9 |
8 |
| Lockheed Martin Corporation | 3305 |
7 |
| Element Six Limited | 13 |
7 |
| Plasmability, LLC | 26 |
7 |
| Element Six (UK) Limited | 203 |
7 |
| Adamant Namiki Precision Jewel Co., Ltd. | 93 |
7 |
| Impossible Diamond, Inc. | 19 |
7 |
| Orbray Co., Ltd. | 37 |
7 |
| Other owners | 419 |