- 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 15/14 - Heating of the melt or the crystallised materials
Patent holdings for IPC class C30B 15/14
Total number of patents in this class: 387
10-year publication summary
24
|
25
|
22
|
21
|
35
|
31
|
60
|
40
|
50
|
0
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Globalwafers Co., Ltd. | 619 |
49 |
Shin-Etsu Handotai Co., Ltd. | 1289 |
30 |
Sumco Corporation | 1124 |
25 |
Siltronic AG | 411 |
23 |
Meishan Boya Advanced Materials Co., Ltd. | 69 |
19 |
Hanwha Solutions Corporation | 704 |
16 |
SK Siltron Co., Ltd. | 158 |
14 |
Xi'an Eswin Material Technology Co., Ltd. | 70 |
13 |
Hanwha Corporation | 291 |
10 |
Siemens Medical Solutions USA, Inc. | 1544 |
9 |
LONGi Green Energy Technology Co., Ltd. | 239 |
7 |
Sumco TECHXIV Corporation | 104 |
6 |
Xi'an ESWIN Silicon Wafer Technology Co., Ltd. | 21 |
6 |
Leading Edge Equipment Technologies, Inc. | 12 |
6 |
Toyota Motor Corporation | 30345 |
5 |
Forschungsverbund Berlin e.V. | 196 |
5 |
LG Siltron Inc. | 116 |
5 |
Zing Semiconductor Corporation | 57 |
5 |
Corner Star Limited | 95 |
5 |
Woongjin Energy Co., Ltd. | 19 |
5 |
Other owners | 124 |