- 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 15/28 - Stabilisation or shape controlling of the molten zone near the pulled crystal; Controlling the section of the crystal using weight changes of the crystal or the melt, e.g. flotation methods
Patent holdings for IPC class C30B 15/28
Total number of patents in this class: 24
10-year publication summary
|
1
|
3
|
3
|
0
|
0
|
1
|
1
|
3
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hanwha Corporation | 258 |
3 |
| Hanwha Solutions Corporation | 572 |
3 |
| Showa Denko K.K. | 2539 |
2 |
| SK Siltron Co., Ltd. | 146 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
1 |
| Siemens Medical Solutions USA, Inc. | 1584 |
1 |
| Evergreen Solar, Inc. | 31 |
1 |
| Globalwafers Co., Ltd. | 561 |
1 |
| LG Siltron Inc. | 116 |
1 |
| MEMC Electronic Materials, Inc. | 91 |
1 |
| Saint-Gobain Ceramics & Plastics, Inc. | 812 |
1 |
| Shin-Etsu Handotai Co., Ltd. | 1277 |
1 |
| Siltronic AG | 395 |
1 |
| South Dakota Board of Regents | 172 |
1 |
| Sumco Corporation | 1116 |
1 |
| TDG Holding Co., Ltd. | 23 |
1 |
| Meishan Boya Advanced Materials Co., Ltd. | 58 |
1 |
| Nanjing Crystal Growth & Energy Equipment Co., Ltd | 2 |
1 |
| Other owners | 0 |