- 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 15/32 - Seed holders, e.g. chucks
Patent holdings for IPC class C30B 15/32
Total number of patents in this class: 55
10-year publication summary
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5
|
3
|
8
|
5
|
3
|
2
|
4
|
3
|
6
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumco Corporation | 1122 |
7 |
| Globalwafers Co., Ltd. | 621 |
6 |
| Siemens Medical Solutions USA, Inc. | 1521 |
5 |
| LG Siltron Inc. | 116 |
4 |
| Corner Star Limited | 95 |
4 |
| SK Siltron Co., Ltd. | 159 |
3 |
| Pva Tepla AG | 13 |
2 |
| Shin-Etsu Handotai Co., Ltd. | 1289 |
2 |
| Siltronic AG | 412 |
2 |
| DAEVAC International Co., Ltd. | 3 |
2 |
| Linton Crystal Technologies Corporation | 7 |
2 |
| Toyota Motor Corporation | 30540 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10700 |
1 |
| Alliance for Sustainable Energy, LLC | 758 |
1 |
| Crystal Systems Corporation | 17 |
1 |
| Siltron Inc. | 40 |
1 |
| SKC Co., Ltd. | 320 |
1 |
| Hemlock Semiconductor Operations LLC | 20 |
1 |
| MEMC Singapore Pte. Ltd. | 27 |
1 |
| Modular Space Tether, Inc. | 1 |
1 |
| Other owners | 7 |