- 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: 928
10-year publication summary
|
50
|
53
|
60
|
61
|
48
|
37
|
52
|
50
|
66
|
51
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tokuyama Corporation | 1395 |
39 |
| Wacker Chemie AG | 2111 |
39 |
| Shin-Etsu Chemical Co., Ltd. | 5669 |
34 |
| Nexeon Limited | 158 |
18 |
| Konica Minolta Medical & Graphic, Inc. | 775 |
17 |
| Sumco Corporation | 1115 |
16 |
| Mitsubishi Materials Corporation | 2449 |
15 |
| Kabushiki Kaisha Toyota Jidoshokki | 1758 |
14 |
| Sharp Kabushiki Kaisha | 18757 |
13 |
| ionobell Inc | 30 |
13 |
| JX Nippon Mining & Metals Corporation | 1488 |
12 |
| LG Energy Solution, Ltd. | 15119 |
12 |
| REC Silicon Inc | 75 |
11 |
| DAe Joo Electronic Materials Co., Ltd. | 61 |
10 |
| Umicore | 649 |
10 |
| Bosquet Silicon Corp. | 17 |
10 |
| LG Chem, Ltd. | 17635 |
9 |
| Panasonic Intellectual Property Management Co., Ltd. | 31562 |
9 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10931 |
9 |
| Enevate Corporation | 399 |
9 |
| Other owners | 609 |