- All sections
- C - Chemistrymetallurgy
- C09C - Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling propertiespreparation of carbon black
- C09C 3/12 - Treatment with organosilicon compounds
Patent holdings for IPC class C09C 3/12
Total number of patents in this class: 624
10-year publication summary
|
37
|
39
|
48
|
40
|
35
|
45
|
31
|
44
|
25
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Admatechs Company Limited | 87 |
17 |
| Shin-Etsu Chemical Co., Ltd. | 5856 |
14 |
| 3m Innovative Properties Company | 17607 |
11 |
| Sumitomo Osaka Cement Co., Ltd. | 879 |
11 |
| Wacker Chemie AG | 2102 |
11 |
| Ishihara Sangyo Kaisha, Ltd. | 669 |
9 |
| Evonik Operations GmbH | 4210 |
9 |
| Rohm and Haas Company | 2942 |
8 |
| Dow Global Technologies LLC | 10699 |
8 |
| M. Technique Co., Ltd. | 251 |
8 |
| Sakai Chemical Industry Co., Ltd. | 275 |
8 |
| The Sweet Living Group, LLC | 23 |
8 |
| Dow Corning Toray Co., Ltd. | 475 |
7 |
| e Ink Corporation | 1538 |
7 |
| Nissan Chemical Corporation | 2131 |
7 |
| BASF SE | 21149 |
6 |
| Merck Patent GmbH | 5726 |
6 |
| Evonik Degussa GmbH | 1436 |
6 |
| Dow Corning Corporation | 934 |
6 |
| Cabot Corporation | 550 |
6 |
| Other owners | 451 |