- 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 29/40 - AIIIBV compounds
Patent holdings for IPC class C30B 29/40
Total number of patents in this class: 1439
10-year publication summary
|
114
|
124
|
148
|
135
|
116
|
121
|
116
|
104
|
120
|
23
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Chemical Corporation | 4313 |
63 |
| NGK Insulators, Ltd. | 4589 |
60 |
| Sumitomo Electric Industries, Ltd. | 14131 |
46 |
| Crystal IS, Inc. | 122 |
46 |
| SLT Technologies, Inc. | 115 |
44 |
| Sumitomo Chemical Company, Limited | 8808 |
39 |
| Sixpoint Materials, Inc. | 58 |
33 |
| Seoul Semiconductor Co., Ltd. | 1073 |
30 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
27 |
| The Regents of the University of California | 18943 |
24 |
| Soitec | 892 |
24 |
| QROMIS, Inc. | 87 |
24 |
| Freiberger Compound Materials GmbH | 61 |
22 |
| JX Nippon Mining & Metals Corporation | 1576 |
22 |
| Samsung Electronics Co., Ltd. | 131630 |
21 |
| Tokuyama Corporation | 1248 |
20 |
| The 13th Research Institute of China Electronics Technology Group Corporation | 118 |
19 |
| Osaka University | 3143 |
17 |
| Toyoda Gosei Co., Ltd. | 1746 |
16 |
| Centre National de La Recherche Scientifique | 9632 |
15 |
| Other owners | 827 |