- All sections
- C - Chemistrymetallurgy
- C09C - Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling propertiespreparation of carbon black
- C09C 3/08 - Treatment with low-molecular-weight organic compounds
Patent holdings for IPC class C09C 3/08
Total number of patents in this class: 713
10-year publication summary
|
34
|
58
|
38
|
42
|
32
|
31
|
70
|
50
|
43
|
34
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Omya International AG | 771 |
32 |
| DIC Corporation | 3841 |
17 |
| 3m Innovative Properties Company | 17737 |
16 |
| Ishihara Sangyo Kaisha, Ltd. | 666 |
15 |
| Toyo Aluminium Kabushiki Kaisha | 343 |
15 |
| FUJIFILM Corporation | 29797 |
12 |
| Daicel Corporation | 2405 |
12 |
| Cabot Corporation | 554 |
10 |
| Dowa Electronics Materials Co., Ltd. | 636 |
10 |
| Sakai Chemical Industry Co., Ltd. | 275 |
10 |
| Maruo Calcium Company Limited | 31 |
9 |
| BASF SE | 21072 |
8 |
| PPG Industries Ohio, Inc. | 3417 |
8 |
| Nippon Sheet Glass Company, Limited | 978 |
8 |
| Shiraishi Kogyo Kaisha, Ltd. | 66 |
8 |
| Sumitomo Osaka Cement Co., Ltd. | 864 |
8 |
| E. I. du Pont de Nemours and Company | 3905 |
7 |
| Seiko Epson Corporation | 19675 |
7 |
| Nippon Shokubai Co., Ltd. | 1507 |
7 |
| Hewlett-Packard Development Company, L.P. | 25592 |
6 |
| Other owners | 488 |