- All sections
- C - Chemistrymetallurgy
- C09C - Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling propertiespreparation of carbon black
- C09C 3/00 - Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
Patent holdings for IPC class C09C 3/00
Total number of patents in this class: 352
10-year publication summary
|
19
|
15
|
10
|
15
|
20
|
34
|
36
|
36
|
25
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Omya International AG | 772 |
11 |
| ECKART GmbH | 312 |
8 |
| BASF SE | 21150 |
7 |
| Nalco Company | 550 |
7 |
| Toyo Aluminium Kabushiki Kaisha | 348 |
7 |
| Cqv Co., Ltd. | 72 |
6 |
| E. I. du Pont de Nemours and Company | 3661 |
5 |
| The Chemours Company Fc, LLC | 1309 |
5 |
| 3m Innovative Properties Company | 17507 |
4 |
| Hewlett-Packard Development Company, L.P. | 25337 |
4 |
| PPG Industries Ohio, Inc. | 3354 |
4 |
| Sumitomo Osaka Cement Co., Ltd. | 883 |
4 |
| Wacker Chemie AG | 2101 |
4 |
| ionobell Inc | 30 |
4 |
| Qemetica S.A. | 27 |
4 |
| Samsung Display Co., Ltd. | 37960 |
3 |
| The Regents of the University of California | 20574 |
3 |
| CertainTeed Corporation | 219 |
3 |
| Denka Company Limited | 2702 |
3 |
| DIC Corporation | 3920 |
3 |
| Other owners | 253 |