- 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 15/20 - Controlling or regulating
Patent holdings for IPC class C30B 15/20
Total number of patents in this class: 650
10-year publication summary
|
39
|
44
|
34
|
47
|
47
|
70
|
70
|
76
|
39
|
30
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Globalwafers Co., Ltd. | 730 |
93 |
| Sumco Corporation | 1108 |
88 |
| Siltronic AG | 433 |
52 |
| Shin-Etsu Handotai Co., Ltd. | 1306 |
49 |
| SK Siltron Co., Ltd. | 171 |
29 |
| Xi'an Eswin Material Technology Co., Ltd. | 102 |
23 |
| LG Siltron Inc. | 116 |
18 |
| Hanwha Solutions Corporation | 1168 |
17 |
| Zing Semiconductor Corporation | 70 |
14 |
| TCL Zhonghuan Renewable Energy Technology Co., Ltd. | 145 |
14 |
| LONGi Green Energy Technology Co., Ltd. | 438 |
13 |
| Meishan Boya Advanced Materials Co., Ltd. | 92 |
13 |
| Hanwha Corporation | 313 |
11 |
| Sumco TECHXIV Corporation | 93 |
11 |
| Siemens Medical Solutions USA, Inc. | 1465 |
6 |
| Globalwafers Japan Co., Ltd. | 71 |
6 |
| Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences | 316 |
6 |
| Hangzhou Fujia Gallium Technology Co. Ltd. | 21 |
6 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11127 |
5 |
| Corner Star Limited | 95 |
5 |
| Other owners | 171 |