- 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 15/10 - Crucibles or containers for supporting the melt
Patent holdings for IPC class C30B 15/10
Total number of patents in this class: 550
10-year publication summary
29
|
24
|
26
|
28
|
36
|
38
|
54
|
51
|
54
|
16
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Sumco Corporation | 1117 |
112 |
Globalwafers Co., Ltd. | 640 |
72 |
Shin-Etsu Quartz Products Co., Ltd. | 147 |
30 |
Japan Super Quartz Corporation | 38 |
27 |
SK Siltron Co., Ltd. | 162 |
18 |
Shin-Etsu Handotai Co., Ltd. | 1283 |
17 |
Siltronic AG | 422 |
17 |
Hanwha Solutions Corporation | 818 |
15 |
Hanwha Corporation | 297 |
13 |
Toyo Tanso Co., Ltd. | 222 |
11 |
Siemens Medical Solutions USA, Inc. | 1513 |
10 |
Xi'an Eswin Material Technology Co., Ltd. | 79 |
10 |
Heraeus Quarzglas GmbH & Co. KG | 409 |
6 |
Shin-Etsu Chemical Co., Ltd. | 5651 |
5 |
Corner Star Limited | 95 |
5 |
LONGi Green Energy Technology Co., Ltd. | 286 |
5 |
Meishan Boya Advanced Materials Co., Ltd. | 84 |
5 |
Toyota Motor Corporation | 31985 |
4 |
Commissariat à l'énergie atomique et aux energies alternatives | 10923 |
4 |
Forschungsverbund Berlin e.V. | 192 |
4 |
Other owners | 160 |