- 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 33/02 - Heat treatment
Patent holdings for IPC class C30B 33/02
Total number of patents in this class: 574
10-year publication summary
34
|
35
|
46
|
53
|
55
|
54
|
43
|
39
|
48
|
16
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Shin-Etsu Handotai Co., Ltd. | 1277 |
36 |
Sumco Corporation | 1116 |
32 |
Sumitomo Electric Industries, Ltd. | 14131 |
23 |
Siltronic AG | 395 |
21 |
Kwansei Gakuin Educational Foundation | 198 |
19 |
Globalwafers Co., Ltd. | 561 |
16 |
Toyota Tsusho Corporation | 163 |
16 |
Crystal IS, Inc. | 122 |
10 |
Globalwafers Japan Co., Ltd. | 62 |
10 |
Sumitomo Metal Mining Co., Ltd. | 1670 |
10 |
Fuji Electric Co., Ltd. | 4750 |
9 |
Shin-Etsu Chemical Co., Ltd. | 5132 |
8 |
Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
6 |
Disco Corporation | 1745 |
6 |
Element Six Limited | 86 |
6 |
Applied Materials, Inc. | 16587 |
5 |
Element Six Technologies Limited | 179 |
5 |
KLA-Tencor Corporation | 2574 |
5 |
Crytur spol s.r.o. | 23 |
5 |
Fujian Jing' an Optoelectronics Co., Ltd | 26 |
5 |
Other owners | 321 |