- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 33/02 - Silicon
Patent holdings for IPC class C01B 33/02
Total number of patents in this class: 927
10-year publication summary
|
53
|
53
|
62
|
64
|
50
|
39
|
53
|
55
|
67
|
50
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tokuyama Corporation | 1389 |
39 |
| Wacker Chemie AG | 2106 |
39 |
| Shin-Etsu Chemical Co., Ltd. | 5658 |
34 |
| Nexeon Limited | 157 |
18 |
| Konica Minolta Medical & Graphic, Inc. | 783 |
17 |
| Sumco Corporation | 1115 |
16 |
| Mitsubishi Materials Corporation | 2443 |
15 |
| Kabushiki Kaisha Toyota Jidoshokki | 1753 |
14 |
| Sharp Kabushiki Kaisha | 18744 |
13 |
| ionobell Inc | 30 |
13 |
| JX Nippon Mining & Metals Corporation | 1489 |
12 |
| LG Energy Solution, Ltd. | 14982 |
12 |
| REC Silicon Inc | 75 |
11 |
| DAe Joo Electronic Materials Co., Ltd. | 61 |
10 |
| Umicore | 642 |
10 |
| Bosquet Silicon Corp. | 17 |
10 |
| LG Chem, Ltd. | 17632 |
9 |
| Panasonic Intellectual Property Management Co., Ltd. | 31375 |
9 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10923 |
9 |
| Enevate Corporation | 399 |
9 |
| Other owners | 608 |