- 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 15/32 - Seed holders, e.g. chucks
Patent holdings for IPC class C30B 15/32
Total number of patents in this class: 49
10-year publication summary
6
|
5
|
3
|
8
|
5
|
3
|
2
|
4
|
3
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Sumco Corporation | 1116 |
7 |
Globalwafers Co., Ltd. | 561 |
6 |
LG Siltron Inc. | 116 |
4 |
Corner Star Limited | 95 |
4 |
Siemens Medical Solutions USA, Inc. | 1584 |
3 |
SK Siltron Co., Ltd. | 146 |
3 |
Pva Tepla AG | 12 |
2 |
Shin-Etsu Handotai Co., Ltd. | 1277 |
2 |
Siltronic AG | 395 |
2 |
DAEVAC International Co., Ltd. | 3 |
2 |
Linton Crystal Technologies Corporation | 7 |
2 |
Toyota Motor Corporation | 28582 |
1 |
Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
1 |
Crystal Systems Corporation | 16 |
1 |
Siltron Inc. | 45 |
1 |
SKC Co., Ltd. | 311 |
1 |
MEMC Singapore Pte. Ltd. | 27 |
1 |
Modular Space Tether, Inc. | 1 |
1 |
TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
1 |
Cubicpv Inc. | 118 |
1 |
Other owners | 3 |