- 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 15/12 - Double crucible methods
Patent holdings for IPC class C30B 15/12
Total number of patents in this class: 89
10-year publication summary
|
7
|
11
|
5
|
1
|
4
|
17
|
11
|
5
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corner Star Limited | 95 |
21 |
| Globalwafers Co., Ltd. | 714 |
14 |
| Hanwha Solutions Corporation | 983 |
12 |
| Hanwha Corporation | 304 |
9 |
| SunEdison, Inc. | 35 |
7 |
| Shin-Etsu Quartz Products Co., Ltd. | 147 |
5 |
| GTAT IP Holding LLC | 7 |
4 |
| Solaicx, Inc. | 2 |
2 |
| Siemens Medical Solutions USA, Inc. | 1482 |
1 |
| 1366 Technologies, Inc. | 17 |
1 |
| The 13th Research Institute of China Electronics Technology Group Corporation | 135 |
1 |
| Fukuda Crystal Laboratory | 10 |
1 |
| GTAT Corporation | 111 |
1 |
| Jinko Solar Co., Ltd. | 245 |
1 |
| Nippon Mining & Metals Co., Ltd. | 101 |
1 |
| Shin-Etsu Handotai Co., Ltd. | 1290 |
1 |
| Siltronic AG | 427 |
1 |
| Sumco Corporation | 1112 |
1 |
| LONGi Green Energy Technology Co., Ltd. | 367 |
1 |
| Xi'an Eswin Material Technology Co., Ltd. | 90 |
1 |
| Other owners | 3 |