- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 33/033 - Preparation by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material by reduction of silicon halides or halosilanes with a metal or a metallic alloy as the only reducing agents
Patent holdings for IPC class C01B 33/033
Total number of patents in this class: 78
10-year publication summary
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3
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1
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0
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1
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1
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2
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0
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3
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1
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1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JX Nippon Mining & Metals Corporation | 1461 |
6 |
| Toho Titanium Co., Ltd. | 269 |
6 |
| JNC Corporation | 1548 |
5 |
| Sumitomo Chemical Company, Limited | 8968 |
4 |
| Umicore | 775 |
4 |
| Asahi Glass Company, Limited | 2619 |
3 |
| Hemlock Semiconductor Corporation | 33 |
3 |
| Cosmo Oil Co., Ltd. | 182 |
3 |
| Kinotech Solar Energy Corporation | 12 |
3 |
| Norsk Hydro ASA | 247 |
3 |
| Dynatec Engineering AS | 9 |
2 |
| Globalwafers Co., Ltd. | 730 |
2 |
| The Penn State Research Foundation | 1611 |
2 |
| SRI International | 993 |
2 |
| Wacker Chemie AG | 2109 |
2 |
| Hpq-silicon Resources Inc. | 3 |
2 |
| Sumitomo Electric Industries, Ltd. | 16355 |
1 |
| Evonik Degussa GmbH | 1371 |
1 |
| Shin-Etsu Chemical Co., Ltd. | 6109 |
1 |
| Cabot Corporation | 543 |
1 |
| Other owners | 22 |