- All sections
- C - Chemistry; metallurgy
- C09C - Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties; preparation of carbon black
- C09C 3/06 - Treatment with inorganic compounds
Patent holdings for IPC class C09C 3/06
Total number of patents in this class: 754
10-year publication summary
|
47
|
48
|
53
|
50
|
52
|
53
|
51
|
71
|
69
|
22
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Sheet Glass Company, Limited | 992 |
33 |
| M. Technique Co., Ltd. | 237 |
26 |
| Cqv Co., Ltd. | 70 |
22 |
| Merck Patent GmbH | 5909 |
18 |
| Kronos International, Inc. | 105 |
15 |
| The Chemours Company Fc, LLC | 1107 |
14 |
| Ishihara Sangyo Kaisha, Ltd. | 663 |
14 |
| Toyo Aluminium Kabushiki Kaisha | 357 |
14 |
| Tronox LLC | 177 |
12 |
| E. I. du Pont de Nemours and Company | 4345 |
11 |
| Sakai Chemical Industry Co., Ltd. | 266 |
10 |
| FUJIFILM Corporation | 27102 |
9 |
| DIC Corporation | 3597 |
9 |
| Omya International AG | 816 |
8 |
| Sumitomo Metal Mining Co., Ltd. | 1670 |
8 |
| Tokai Carbon Co., Ltd. | 99 |
8 |
| U.S. Silica Company | 99 |
8 |
| PPG Industries Ohio, Inc. | 3430 |
7 |
| ECKART GmbH | 331 |
7 |
| JGC Catalysts and Chemicals Ltd. | 238 |
7 |
| Other owners | 494 |