- 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 33/10 - Etching in solutions or melts
Patent holdings for IPC class C30B 33/10
Total number of patents in this class: 174
10-year publication summary
|
11
|
19
|
16
|
12
|
12
|
18
|
15
|
27
|
11
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Electric Industries, Ltd. | 15377 |
16 |
| Changzhou Shichuang Energy Co.,Ltd. | 69 |
6 |
| Shin-Etsu Handotai Co., Ltd. | 1286 |
5 |
| Tokuyama Corporation | 1374 |
5 |
| QROMIS, Inc. | 92 |
4 |
| Changzhou S.C Exact Equipment Co., Ltd. | 16 |
4 |
| JX Metals Corporation | 116 |
4 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10879 |
3 |
| Nichia Corporation | 3669 |
3 |
| AXT, Inc. | 24 |
3 |
| Seoul Semiconductor Co., Ltd. | 1078 |
3 |
| Senic Inc. | 47 |
3 |
| Resonac Corporation | 2702 |
3 |
| Illinois Tool Works Inc. | 11409 |
2 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 42222 |
2 |
| Kyocera Corporation | 13706 |
2 |
| Shin-Etsu Chemical Co., Ltd. | 5602 |
2 |
| Mitsubishi Chemical Corporation | 4492 |
2 |
| National Institute of Advanced Industrial Science and Technology | 3788 |
2 |
| The 13th Research Institute of China Electronics Technology Group Corporation | 125 |
2 |
| Other owners | 98 |