- 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 21/02 - Unidirectional solidification of eutectic materials by normal casting or gradient freezing
Patent holdings for IPC class C30B 21/02
Total number of patents in this class: 92
10-year publication summary
6
|
3
|
5
|
0
|
5
|
0
|
3
|
1
|
0
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Rtx Corporation | 8674 |
9 |
Sumitomo Electric Industries, Ltd. | 14131 |
4 |
Mitsubishi Chemical Corporation | 4313 |
4 |
Sumco TECHXIV Corporation | 109 |
4 |
Freiberger Compound Materials GmbH | 61 |
3 |
Siltronic AG | 395 |
3 |
Sumco Corporation | 1116 |
3 |
SLT Technologies, Inc. | 115 |
3 |
Applied Materials, Inc. | 16587 |
2 |
AXT, Inc. | 22 |
2 |
Power Integrations, Inc. | 527 |
2 |
Semimaterials Co., Ltd. | 19 |
2 |
Shin-Etsu Handotai Co., Ltd. | 1277 |
2 |
LG Chem, Ltd. | 17205 |
1 |
The Regents of the University of California | 18943 |
1 |
Micron Technology, Inc. | 24960 |
1 |
Hon Hai Precision Industry Co., Ltd. | 4157 |
1 |
Denso Corporation | 23338 |
1 |
Tokyo Electron Limited | 11599 |
1 |
NGK Insulators, Ltd. | 4589 |
1 |
Other owners | 42 |