- 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 25/18 - Epitaxial-layer growth characterised by the substrate
Patent holdings for IPC class C30B 25/18
Total number of patents in this class: 1197
10-year publication summary
|
90
|
87
|
118
|
120
|
95
|
98
|
112
|
112
|
125
|
33
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Electric Industries, Ltd. | 14131 |
48 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
46 |
| Shin-Etsu Handotai Co., Ltd. | 1277 |
41 |
| NGK Insulators, Ltd. | 4589 |
32 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
31 |
| Soitec | 892 |
29 |
| Mitsubishi Chemical Corporation | 4313 |
25 |
| Sumitomo Chemical Company, Limited | 8808 |
24 |
| Applied Materials, Inc. | 16587 |
23 |
| Element Six Technologies Limited | 179 |
18 |
| Tsinghua University | 5426 |
17 |
| Sumco Corporation | 1116 |
17 |
| Resonac Corporation | 2233 |
17 |
| Hon Hai Precision Industry Co., Ltd. | 4157 |
16 |
| Tokuyama Corporation | 1248 |
16 |
| Centre National de La Recherche Scientifique | 9632 |
15 |
| QROMIS, Inc. | 87 |
15 |
| The Regents of the University of California | 18943 |
14 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
13 |
| ASM IP Holding B.V. | 1715 |
13 |
| Other owners | 727 |