- All sections
- C - Chemistrymetallurgy
- C09C - Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling propertiespreparation of carbon black
- C09C 1/00 - Treatment of specific inorganic materials other than fibrous fillers Preparation of carbon black
Patent holdings for IPC class C09C 1/00
Total number of patents in this class: 1346
10-year publication summary
|
104
|
90
|
92
|
105
|
78
|
75
|
72
|
66
|
50
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ECKART GmbH | 310 |
88 |
| Viavi Solutions Inc. | 1493 |
75 |
| Merck Patent GmbH | 5743 |
58 |
| Sun Chemical Corporation | 829 |
32 |
| Nippon Sheet Glass Company, Limited | 967 |
30 |
| Susonity Commercial GmbH | 210 |
30 |
| Cqv Co., Ltd. | 72 |
27 |
| BASF SE | 21131 |
23 |
| Sun Chemical B.V. | 381 |
20 |
| Schlenk Metallic Pigments GmbH | 45 |
19 |
| Sumitomo Metal Mining Co., Ltd. | 1919 |
19 |
| PPG Industries Ohio, Inc. | 3382 |
17 |
| 3m Innovative Properties Company | 17576 |
14 |
| Giesecke+Devrient Currency Technology GmbH | 931 |
14 |
| Omya International AG | 770 |
13 |
| FUJIFILM Corporation | 30137 |
11 |
| DIC Corporation | 3899 |
11 |
| Schaefer Kalk GmbH & Co. KG | 47 |
10 |
| BASF SE | 105 |
10 |
| BASF Corporation | 1694 |
9 |
| Other owners | 816 |