- All sections
- C - Chemistrymetallurgy
- C09C - Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling propertiespreparation of carbon black
- C09C 1/24 - Oxides of iron
Patent holdings for IPC class C09C 1/24
Total number of patents in this class: 335
10-year publication summary
|
14
|
41
|
27
|
22
|
17
|
16
|
12
|
13
|
7
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lanxess Deutschland GmbH | 1112 |
48 |
| M. Technique Co., Ltd. | 248 |
24 |
| BASF SE | 21039 |
10 |
| Evonik Degussa GmbH | 1486 |
10 |
| The Regents of the University of California | 20137 |
8 |
| BASF Corporation | 1719 |
6 |
| Sun Chemical Corporation | 838 |
5 |
| Toda Kogyo Corporation | 344 |
5 |
| Cqv Co., Ltd. | 70 |
4 |
| Kobo Products, Inc. | 51 |
4 |
| Saint-Gobain Ceramics & Plastics, Inc. | 837 |
4 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6121 |
4 |
| Merck Patent GmbH | 5773 |
3 |
| FUJIFILM Corporation | 29702 |
3 |
| Rohm and Haas Company | 2910 |
3 |
| Croda International plc | 572 |
3 |
| Dainichiseika Color & Chemicals Mfg. Co., Ltd. | 372 |
3 |
| e Ink Corporation | 1510 |
3 |
| HUBLOT SA, Geneve | 158 |
3 |
| Snu R&db Foundation | 464 |
3 |
| Other owners | 179 |