- All sections
- C - Chemistrymetallurgy
- C09C - Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling propertiespreparation of carbon black
- C09C 1/04 - Compounds of zinc
Patent holdings for IPC class C09C 1/04
Total number of patents in this class: 348
10-year publication summary
|
22
|
27
|
27
|
18
|
18
|
18
|
17
|
16
|
5
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 20432 |
20 |
| M. Technique Co., Ltd. | 243 |
17 |
| Sakai Chemical Industry Co., Ltd. | 272 |
12 |
| 3m Innovative Properties Company | 17957 |
10 |
| Sumitomo Osaka Cement Co., Ltd. | 827 |
9 |
| The Sweet Living Group, LLC | 22 |
9 |
| E. I. du Pont de Nemours and Company | 4249 |
8 |
| International Business Machines Corporation | 60129 |
7 |
| Evonik Degussa GmbH | 1557 |
7 |
| The Chemours Company Fc, LLC | 1162 |
7 |
| Societe Industrielle Liegeoise des Oxydes SA | 11 |
6 |
| Nanophase Technologies Corporation | 42 |
5 |
| Sachtleben Chemie GmbH | 69 |
5 |
| The Sherwin-Williams Company | 559 |
4 |
| Merck Patent GmbH | 5842 |
4 |
| Engineered Polymer Solutions, Inc. (a Delaware corporation) | 150 |
4 |
| Lanxess Deutschland GmbH | 1119 |
4 |
| Nissan Chemical Industries, Ltd. | 1757 |
4 |
| The Shepherd Color Company | 45 |
4 |
| The Valspar Corporation | 155 |
4 |
| Other owners | 198 |