- All sections
- C - Chemistrymetallurgy
- C30B - Single-crystal growthunidirectional solidification of eutectic material or unidirectional demixing of eutectoid materialrefining by zone-melting of materialproduction of a homogeneous polycrystalline material with defined structuresingle crystals or homogeneous polycrystalline material with defined structureafter-treatment of single crystals or a homogeneous polycrystalline material with defined structureapparatus therefor
- C30B 33/02 - Heat treatment
Patent holdings for IPC class C30B 33/02
Total number of patents in this class: 639
10-year publication summary
|
35
|
45
|
53
|
55
|
53
|
41
|
41
|
48
|
45
|
39
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shin-Etsu Handotai Co., Ltd. | 1283 |
41 |
| Sumco Corporation | 1116 |
31 |
| Sumitomo Electric Industries, Ltd. | 15647 |
26 |
| Siltronic AG | 423 |
23 |
| Globalwafers Co., Ltd. | 652 |
21 |
| Kwansei Gakuin Educational Foundation | 218 |
21 |
| Toyota Tsusho Corporation | 181 |
18 |
| Globalwafers Japan Co., Ltd. | 69 |
11 |
| Crystal IS, Inc. | 125 |
10 |
| Sumitomo Metal Mining Co., Ltd. | 1795 |
10 |
| Fuji Electric Co., Ltd. | 5206 |
9 |
| Element Six Technologies Limited | 200 |
9 |
| Applied Materials, Inc. | 18932 |
7 |
| Shin-Etsu Chemical Co., Ltd. | 5695 |
7 |
| Disco Corporation | 1873 |
7 |
| Wolfspeed, Inc. | 734 |
7 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10949 |
6 |
| Element Six Limited | 75 |
6 |
| Soitec | 1035 |
6 |
| Crytur spol s.r.o. | 24 |
6 |
| Other owners | 357 |