- 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: 612
10-year publication summary
|
41
|
46
|
52
|
41
|
36
|
46
|
33
|
44
|
26
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Admatechs Company Limited | 90 |
17 |
| Shin-Etsu Chemical Co., Ltd. | 5952 |
14 |
| 3m Innovative Properties Company | 17509 |
11 |
| Sumitomo Osaka Cement Co., Ltd. | 880 |
11 |
| Wacker Chemie AG | 2102 |
11 |
| Ishihara Sangyo Kaisha, Ltd. | 658 |
9 |
| Nissan Chemical Corporation | 2170 |
9 |
| Evonik Operations GmbH | 4248 |
9 |
| M. Technique Co., Ltd. | 252 |
8 |
| Sakai Chemical Industry Co., Ltd. | 276 |
8 |
| The Sweet Living Group, LLC | 23 |
8 |
| Rohm and Haas Company | 2940 |
7 |
| Dow Global Technologies LLC | 10798 |
7 |
| Dow Corning Toray Co., Ltd. | 466 |
7 |
| e Ink Corporation | 1545 |
7 |
| BASF SE | 21129 |
6 |
| Merck Patent GmbH | 5663 |
6 |
| Evonik Degussa GmbH | 1410 |
6 |
| Dow Corning Corporation | 905 |
6 |
| Cabot Corporation | 556 |
6 |
| Other owners | 439 |