- All sections
- C - Chemistrymetallurgy
- C30B - Single-crystal growthunidirectional solidification of eutectic material or unidirectional demixing of eutectoid materialrefining by zone-melting of materialproduction of a homogeneous polycrystalline material with defined structuresingle crystals or homogeneous polycrystalline material with defined structureafter-treatment of single crystals or a homogeneous polycrystalline material with defined structureapparatus therefor
- C30B 29/42 - Gallium arsenide
Patent holdings for IPC class C30B 29/42
Total number of patents in this class: 174
10-year publication summary
|
10
|
9
|
17
|
18
|
20
|
15
|
24
|
21
|
5
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Electric Industries, Ltd. | 16355 |
47 |
| The United States of America as represented by the Secretary of the Air Force | 923 |
12 |
| Dowa Electronics Materials Co., Ltd. | 636 |
10 |
| Freiberger Compound Materials GmbH | 55 |
9 |
| AXT, Inc. | 23 |
8 |
| Utica Leaseco, LLC Assignee | 103 |
8 |
| BAE Systems Information and Electronic Systems Integration Inc. | 1919 |
5 |
| Shanxi China Crystal Technologies Co., Ltd. | 4 |
4 |
| Alliance for Energy Innovation, LLC | 569 |
4 |
| Azur Space Solar Power GmbH | 161 |
3 |
| Beijing Tongmei Xtal Technology Co., Ltd. | 26 |
3 |
| JX Nippon Mining & Metals Corporation | 1461 |
3 |
| Soitec | 1103 |
3 |
| Hanergy New Material Technology Co., Ltd. | 15 |
3 |
| Alignedbio AB | 13 |
3 |
| The Regents of the University of California | 20778 |
2 |
| Corning Incorporated | 10510 |
2 |
| Wisconsin Alumni Research Foundation | 3902 |
2 |
| Microsoft Technology Licensing, LLC | 54463 |
2 |
| Industry-Academic Cooperation Foundation, Yonsei University | 2447 |
2 |
| Other owners | 39 |