- 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 33/08 - Etching
Patent holdings for IPC class C30B 33/08
Total number of patents in this class: 132
10-year publication summary
11
|
5
|
15
|
10
|
12
|
14
|
8
|
15
|
16
|
5
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Mainstream Engineering Corporation | 143 |
9 |
Diamond Innovations, Inc. | 241 |
7 |
QROMIS, Inc. | 87 |
6 |
Sumitomo Electric Industries, Ltd. | 14131 |
4 |
Applied Materials, Inc. | 16587 |
4 |
NGK Insulators, Ltd. | 4589 |
4 |
ASM IP Holding B.V. | 1715 |
4 |
Nichia Corporation | 3394 |
3 |
Globalwafers Co., Ltd. | 561 |
3 |
Kwansei Gakuin Educational Foundation | 198 |
3 |
IIA Technologies Pte. Ltd. | 15 |
3 |
International Business Machines Corporation | 60644 |
2 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
2 |
Shin-Etsu Chemical Co., Ltd. | 5132 |
2 |
Fuji Electric Co., Ltd. | 4750 |
2 |
AKHAN Semiconductor, Inc. | 36 |
2 |
Element Six Technologies Limited | 179 |
2 |
Nexeon Limited | 130 |
2 |
Stc.unm | 699 |
2 |
Sumco Corporation | 1116 |
2 |
Other owners | 64 |