- All sections
- C - Chemistrymetallurgy
- C09C - Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling propertiespreparation of carbon black
- C09C 3/04 - Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
Patent holdings for IPC class C09C 3/04
Total number of patents in this class: 411
10-year publication summary
|
26
|
22
|
17
|
27
|
30
|
46
|
32
|
37
|
29
|
16
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Omya International AG | 777 |
47 |
| Coatex S.A.S. | 208 |
11 |
| DIC Corporation | 3965 |
9 |
| Imerys Minerals Limited | 115 |
6 |
| Omya Development AG | 82 |
6 |
| BASF SE | 21308 |
5 |
| COATEX une société par actions simplifiée | 175 |
5 |
| Denka Company Limited | 2728 |
5 |
| Graphene Platform Corporation | 24 |
5 |
| Carbon Upcycling Technologies Inc. | 43 |
5 |
| Evonik Degussa GmbH | 1371 |
4 |
| Asahi Kasei Kabushiki Kaisha | 2834 |
4 |
| ECKART GmbH | 311 |
4 |
| Kronos International, Inc. | 113 |
4 |
| Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences | 41 |
4 |
| Lubrizol Advanced Materials, Inc. | 955 |
4 |
| Sun Chemical Corporation | 812 |
4 |
| Kremenak Nanotech, Inc. | 6 |
4 |
| ionobell Inc | 30 |
4 |
| 3m Innovative Properties Company | 17481 |
3 |
| Other owners | 268 |