- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 33/03 - Preparation by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material by decomposition of silicon halides or halosilanes or reduction thereof with hydrogen as the only reducing agent
Patent holdings for IPC class C01B 33/03
Total number of patents in this class: 139
10-year publication summary
|
16
|
7
|
8
|
7
|
9
|
7
|
7
|
5
|
8
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Wacker Chemie AG | 2106 |
23 |
| Tokuyama Corporation | 1389 |
17 |
| Corner Star Limited | 95 |
12 |
| MEMC Electronic Materials, Inc. | 80 |
8 |
| Shin-Etsu Chemical Co., Ltd. | 5658 |
7 |
| Umicore | 642 |
5 |
| Jiangsu Zhongneng Polysilicon Technology Development Co., Ltd. | 10 |
4 |
| LG Chem, Ltd. | 17632 |
3 |
| Hemlock Semiconductor Corporation | 33 |
3 |
| Dynatec Engineering AS | 9 |
3 |
| REC Silicon Inc | 75 |
3 |
| High-purity Silicon Corporation | 73 |
3 |
| Evonik Degussa GmbH | 1531 |
2 |
| Konica Minolta Medical & Graphic, Inc. | 783 |
2 |
| Dow Corning Corporation | 965 |
2 |
| OCI Company Ltd. | 153 |
2 |
| L' Air Liquide Societe Anonyme Pour L' Etude et L' Exploitation des procedes Georges Claude | 76 |
2 |
| Hualu Engineering & Technology Co. Ltd | 8 |
2 |
| Centre National de La Recherche Scientifique | 10418 |
1 |
| Murata Manufacturing Co., Ltd. | 24526 |
1 |
| Other owners | 34 |