- 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: 346
10-year publication summary
|
6
|
16
|
13
|
9
|
13
|
18
|
34
|
35
|
36
|
24
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Omya International AG | 770 |
11 |
| ECKART GmbH | 318 |
8 |
| BASF SE | 21098 |
7 |
| Nalco Company | 566 |
7 |
| Cqv Co., Ltd. | 72 |
6 |
| Toyo Aluminium Kabushiki Kaisha | 344 |
6 |
| E. I. du Pont de Nemours and Company | 3885 |
5 |
| 3m Innovative Properties Company | 17719 |
4 |
| Hewlett-Packard Development Company, L.P. | 25577 |
4 |
| PPG Industries Ohio, Inc. | 3415 |
4 |
| The Chemours Company Fc, LLC | 1262 |
4 |
| Sumitomo Osaka Cement Co., Ltd. | 869 |
4 |
| Wacker Chemie AG | 2105 |
4 |
| ionobell Inc | 30 |
4 |
| Qemetica S.A. | 27 |
4 |
| Samsung Display Co., Ltd. | 36317 |
3 |
| The Regents of the University of California | 20303 |
3 |
| CertainTeed Corporation | 227 |
3 |
| Coatex S.A.S. | 228 |
3 |
| Croda International plc | 575 |
3 |
| Other owners | 249 |