- 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 33/12 - Etching in gas atmosphere or plasma
Patent holdings for IPC class C30B 33/12
Total number of patents in this class: 175
10-year publication summary
|
10
|
15
|
9
|
18
|
15
|
10
|
11
|
7
|
19
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kwansei Gakuin Educational Foundation | 221 |
24 |
| Toyota Tsusho Corporation | 189 |
16 |
| Applied Materials, Inc. | 19887 |
14 |
| Sumitomo Electric Industries, Ltd. | 16034 |
11 |
| Toyo Tanso Co., Ltd. | 218 |
9 |
| ASM IP Holding B.V. | 2260 |
7 |
| Ecole Polytechnique Federale de Lausanne (epfl) | 1580 |
5 |
| Denso Corporation | 25099 |
4 |
| Element Six Technologies Limited | 203 |
4 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 46952 |
3 |
| Nichia Corporation | 3812 |
3 |
| Shin-Etsu Handotai Co., Ltd. | 1298 |
3 |
| Centre National de La Recherche Scientifique | 10855 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 33248 |
2 |
| Shin-Etsu Chemical Co., Ltd. | 5899 |
2 |
| NGK Insulators, Ltd. | 5179 |
2 |
| Board of Trustees of Michigan State University | 1208 |
2 |
| Mainstream Engineering Corporation | 155 |
2 |
| Universitat Basel | 308 |
2 |
| Universitat des Saarlandes | 154 |
2 |
| Other owners | 56 |