- 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: 343
10-year publication summary
|
6
|
16
|
13
|
9
|
13
|
18
|
33
|
35
|
36
|
18
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Omya International AG | 771 |
10 |
| PPG Industries Ohio, Inc. | 3441 |
8 |
| BASF SE | 20991 |
7 |
| ECKART GmbH | 317 |
7 |
| Nalco Company | 571 |
7 |
| Cqv Co., Ltd. | 70 |
6 |
| E. I. du Pont de Nemours and Company | 4000 |
5 |
| Toyo Aluminium Kabushiki Kaisha | 350 |
5 |
| 3m Innovative Properties Company | 17781 |
4 |
| Hewlett-Packard Development Company, L.P. | 25793 |
4 |
| The Chemours Company Fc, LLC | 1255 |
4 |
| Sumitomo Osaka Cement Co., Ltd. | 854 |
4 |
| Wacker Chemie AG | 2114 |
4 |
| ionobell Inc | 30 |
4 |
| Samsung Display Co., Ltd. | 35269 |
3 |
| The Regents of the University of California | 20087 |
3 |
| Merck Patent GmbH | 5768 |
3 |
| ALPHA Calcit Fullstoff Gesellschaft mbH | 15 |
3 |
| CertainTeed Corporation | 244 |
3 |
| Croda International plc | 570 |
3 |
| Other owners | 246 |