- All sections
- C - Chemistrymetallurgy
- C09C - Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling propertiespreparation of carbon black
- C09C 1/22 - Compounds of iron
Patent holdings for IPC class C09C 1/22
Total number of patents in this class: 93
10-year publication summary
|
1
|
6
|
3
|
1
|
0
|
3
|
6
|
2
|
2
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lanxess Deutschland GmbH | 1110 |
11 |
| Sun Chemical Corporation | 831 |
8 |
| ECKART GmbH | 319 |
3 |
| Powdertech Co., Ltd. | 138 |
3 |
| The Shepherd Color Company | 50 |
3 |
| Toda Kogyo Corporation | 344 |
3 |
| The Sherwin-Williams Company | 528 |
2 |
| Engineered Polymer Solutions, Inc. (a Delaware corporation) | 144 |
2 |
| The Valspar Corporation | 149 |
2 |
| Valspar Sourcing, Inc. | 334 |
2 |
| Viavi Solutions Inc. | 1466 |
2 |
| SWIMC, LLC | 2516 |
2 |
| Xiamen University of Technology | 50 |
2 |
| The Sherwin-Williams Headquarters Company | 145 |
2 |
| Cukurova Universitesi Rektorlugu | 60 |
2 |
| BASF SE | 21080 |
1 |
| The Boeing Company | 20161 |
1 |
| Centre National de La Recherche Scientifique | 10635 |
1 |
| Evonik Degussa GmbH | 1466 |
1 |
| BASF Corporation | 1716 |
1 |
| Other owners | 39 |