- 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: 89
10-year publication summary
|
6
|
3
|
1
|
0
|
3
|
6
|
2
|
3
|
3
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lanxess Deutschland GmbH | 1139 |
10 |
| Sun Chemical Corporation | 821 |
7 |
| Powdertech Co., Ltd. | 138 |
4 |
| ECKART GmbH | 312 |
3 |
| The Shepherd Color Company | 49 |
3 |
| Toda Kogyo Corporation | 342 |
3 |
| The Sherwin-Williams Company | 516 |
2 |
| Engineered Polymer Solutions, Inc. (a Delaware corporation) | 142 |
2 |
| The Valspar Corporation | 147 |
2 |
| Valspar Sourcing, Inc. | 317 |
2 |
| Viavi Solutions Inc. | 1511 |
2 |
| Imagion Biosystems, Inc. | 21 |
2 |
| SWIMC, LLC | 2564 |
2 |
| Xiamen University of Technology | 51 |
2 |
| The Sherwin-Williams Headquarters Company | 143 |
2 |
| Cukurova Universitesi Rektorlugu | 61 |
2 |
| BASF SE | 21151 |
1 |
| The Boeing Company | 20094 |
1 |
| Centre National de La Recherche Scientifique | 10895 |
1 |
| Evonik Degussa GmbH | 1406 |
1 |
| Other owners | 35 |