- All sections
- C - Chemistrymetallurgy
- C09C - Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling propertiespreparation of carbon black
- C09C 1/56 - Treatment of carbon black
Patent holdings for IPC class C09C 1/56
Total number of patents in this class: 465
10-year publication summary
|
28
|
34
|
23
|
29
|
24
|
28
|
21
|
40
|
37
|
20
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cabot Corporation | 542 |
53 |
| Suncoal Industries GmbH | 73 |
16 |
| Monolith Materials, Inc. | 123 |
15 |
| Tokai Carbon Co., Ltd. | 104 |
13 |
| Continental Carbon Company | 16 |
11 |
| Orion Engineered Carbons IP GmbH & Co. KG | 63 |
10 |
| OCI Company Ltd. | 165 |
9 |
| Denka Company Limited | 2720 |
8 |
| e Ink Corporation | 1548 |
8 |
| Landa Labs (2012) Ltd. | 135 |
8 |
| Orion Engineered Carbons GmbH | 73 |
7 |
| Tesla Nanocoatings, Inc. | 33 |
7 |
| LG Energy Solution, Ltd. | 18906 |
7 |
| E. I. du Pont de Nemours and Company | 3534 |
6 |
| Evonik Carbon Black GmbH | 29 |
6 |
| Bridgestone Corporation | 7259 |
6 |
| Imertech SAS | 245 |
6 |
| Archer Daniels Midland Company | 1075 |
5 |
| Pirelli Tyre S.p.A. | 1961 |
5 |
| Politecnico di Milano | 896 |
5 |
| Other owners | 254 |