- All sections
- C - Chemistry; metallurgy
- C09C - Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties; preparation 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: 385
10-year publication summary
|
27
|
17
|
26
|
22
|
17
|
27
|
30
|
46
|
32
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Omya International AG | 816 |
52 |
| Coatex S.A.S. | 231 |
15 |
| Omya Development AG | 100 |
12 |
| DIC Corporation | 3597 |
9 |
| Imerys Minerals Limited | 131 |
7 |
| Evonik Degussa GmbH | 1574 |
5 |
| COATEX une société par actions simplifiée | 150 |
5 |
| Graphene Platform Corporation | 25 |
5 |
| Carbon Upcycling Technologies Inc. | 18 |
5 |
| 3m Innovative Properties Company | 18406 |
4 |
| BASF SE | 19740 |
4 |
| Denka Company Limited | 2189 |
4 |
| Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences | 36 |
4 |
| Lubrizol Advanced Materials, Inc. | 949 |
4 |
| Sun Chemical Corporation | 865 |
4 |
| Asahi Kasei Kabushiki Kaisha | 2429 |
3 |
| Borealis Agrolinz Melamine GmbH | 24 |
3 |
| ECKART GmbH | 331 |
3 |
| Ferro Corporation | 279 |
3 |
| JGC Catalysts and Chemicals Ltd. | 238 |
3 |
| Other owners | 231 |