- 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 15/10 - Crucibles or containers for supporting the melt
Patent holdings for IPC class C30B 15/10
Total number of patents in this class: 504
10-year publication summary
|
30
|
29
|
24
|
26
|
28
|
36
|
38
|
53
|
51
|
17
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumco Corporation | 1116 |
106 |
| Globalwafers Co., Ltd. | 561 |
57 |
| Shin-Etsu Quartz Products Co., Ltd. | 160 |
28 |
| Japan Super Quartz Corporation | 38 |
27 |
| Siltronic AG | 395 |
17 |
| SK Siltron Co., Ltd. | 146 |
17 |
| Shin-Etsu Handotai Co., Ltd. | 1277 |
16 |
| Hanwha Solutions Corporation | 572 |
15 |
| Hanwha Corporation | 258 |
13 |
| Toyo Tanso Co., Ltd. | 227 |
10 |
| Heraeus Quarzglas GmbH & Co. KG | 420 |
6 |
| Leading Edge Equipment Technologies, Inc. | 23 |
6 |
| Xi'an Eswin Material Technology Co., Ltd. | 45 |
6 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
5 |
| Corner Star Limited | 95 |
5 |
| Toyota Motor Corporation | 28582 |
4 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
4 |
| Forschungsverbund Berlin e.V. | 194 |
4 |
| Sasol (USA) Corporation | 69 |
4 |
| Vesuvius Crucible Company | 51 |
4 |
| Other owners | 150 |