- 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: 972
10-year publication summary
|
53
|
62
|
64
|
50
|
39
|
53
|
55
|
68
|
63
|
49
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tokuyama Corporation | 1506 |
42 |
| Wacker Chemie AG | 2124 |
38 |
| Shin-Etsu Chemical Co., Ltd. | 6157 |
34 |
| Nexeon Limited | 183 |
20 |
| LG Energy Solution, Ltd. | 19725 |
19 |
| Sumco Corporation | 1108 |
16 |
| Mitsubishi Materials Corporation | 2484 |
15 |
| Kabushiki Kaisha Toyota Jidoshokki | 1840 |
15 |
| Konica Minolta Medical & Graphic, Inc. | 559 |
13 |
| ionobell Inc | 30 |
13 |
| JX Nippon Mining & Metals Corporation | 1453 |
12 |
| Korea Advanced Institute of Science and Technology | 4725 |
11 |
| REC Silicon Inc | 76 |
11 |
| Umicore | 784 |
11 |
| Hanwha Solutions Corporation | 1223 |
11 |
| LG Chem, Ltd. | 17986 |
10 |
| Panasonic Intellectual Property Management Co., Ltd. | 34623 |
10 |
| DAe Joo Electronic Materials Co., Ltd. | 62 |
10 |
| Kit Co, Ltd. | 23 |
10 |
| Sharp Kabushiki Kaisha | 18480 |
10 |
| Other owners | 641 |