- All sections
- C - Chemistrymetallurgy
- C09C - Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling propertiespreparation of carbon black
- C09C 3/06 - Treatment with inorganic compounds
Patent holdings for IPC class C09C 3/06
Total number of patents in this class: 797
10-year publication summary
|
53
|
51
|
52
|
53
|
52
|
71
|
70
|
59
|
37
|
40
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Sheet Glass Company, Limited | 957 |
35 |
| M. Technique Co., Ltd. | 252 |
26 |
| Cqv Co., Ltd. | 69 |
22 |
| The Chemours Company Fc, LLC | 1348 |
16 |
| Kronos International, Inc. | 115 |
15 |
| Toyo Aluminium Kabushiki Kaisha | 350 |
14 |
| DIC Corporation | 3982 |
13 |
| Tronox LLC | 145 |
12 |
| E. I. du Pont de Nemours and Company | 3473 |
11 |
| Ishihara Sangyo Kaisha, Ltd. | 659 |
11 |
| U.S. Silica Company | 112 |
11 |
| FUJIFILM Corporation | 30628 |
10 |
| Merck Patent GmbH | 5739 |
9 |
| ECKART GmbH | 311 |
9 |
| Sakai Chemical Industry Co., Ltd. | 285 |
8 |
| Sumitomo Metal Mining Co., Ltd. | 1991 |
8 |
| Shin-Etsu Chemical Co., Ltd. | 6127 |
7 |
| PPG Industries Ohio, Inc. | 3318 |
7 |
| JGC Catalysts and Chemicals Ltd. | 260 |
7 |
| Agency for Science, Technology and Research | 3753 |
6 |
| Other owners | 540 |