- 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 15/04 - Single-crystal growth by pulling from a melt, e.g. Czochralski method adding crystallising materials or reactants forming it in situ to the melt adding doping materials, e.g. for n–p-junction
Patent holdings for IPC class C30B 15/04
Total number of patents in this class: 284
10-year publication summary
14
|
29
|
20
|
29
|
16
|
31
|
18
|
21
|
32
|
13
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Sumco Corporation | 1116 |
42 |
Globalwafers Co., Ltd. | 561 |
41 |
Sumco TECHXIV Corporation | 109 |
29 |
Siltronic AG | 395 |
18 |
Shin-Etsu Handotai Co., Ltd. | 1277 |
17 |
Luxium Solutions, LLC | 90 |
12 |
Xi'an Eswin Material Technology Co., Ltd. | 45 |
11 |
Infineon Technologies AG | 8189 |
10 |
Corner Star Limited | 95 |
9 |
MEMC Electronic Materials SpA | 20 |
5 |
Globalwafers Japan Co., Ltd. | 62 |
4 |
LG Siltron Inc. | 116 |
4 |
Tokuyama Corporation | 1248 |
4 |
SK Siltron Co., Ltd. | 146 |
4 |
Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
3 |
Showa Denko K.K. | 2539 |
3 |
GT Advanced CZ, LLC | 5 |
3 |
GTAT IP Holding LLC | 7 |
3 |
Siemens Medical Solutions USA, Inc. | 1584 |
2 |
Elkem Solar AS | 12 |
2 |
Other owners | 58 |