- 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: 176
10-year publication summary
|
10
|
15
|
9
|
18
|
16
|
10
|
11
|
7
|
19
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kwansei Gakuin Educational Foundation | 225 |
24 |
| Toyota Tsusho Corporation | 190 |
16 |
| Applied Materials, Inc. | 20375 |
15 |
| Sumitomo Electric Industries, Ltd. | 16331 |
11 |
| Toyo Tanso Co., Ltd. | 217 |
9 |
| ASM IP Holding B.V. | 2397 |
7 |
| Ecole Polytechnique Federale de Lausanne (epfl) | 1609 |
5 |
| Denso Corporation | 25534 |
4 |
| Element Six Technologies Limited | 207 |
4 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 48302 |
3 |
| Nichia Corporation | 3874 |
3 |
| Shin-Etsu Handotai Co., Ltd. | 1307 |
3 |
| Centre National de La Recherche Scientifique | 11023 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 33997 |
2 |
| Shin-Etsu Chemical Co., Ltd. | 6096 |
2 |
| NGK Insulators, Ltd. | 5236 |
2 |
| Board of Trustees of Michigan State University | 1208 |
2 |
| Mainstream Engineering Corporation | 156 |
2 |
| Universitat Basel | 314 |
2 |
| Universitat des Saarlandes | 152 |
2 |
| Other owners | 56 |