- All sections
- C - Chemistrymetallurgy
- C09C - Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling propertiespreparation of carbon black
- C09C 1/40 - Compounds of aluminium
Patent holdings for IPC class C09C 1/40
Total number of patents in this class: 525
10-year publication summary
|
46
|
24
|
30
|
17
|
33
|
29
|
30
|
36
|
18
|
12
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| DIC Corporation | 4000 |
20 |
| Omya International AG | 780 |
15 |
| Nippon Sheet Glass Company, Limited | 964 |
10 |
| Sasol (USA) Corporation | 67 |
9 |
| BASF SE | 21334 |
8 |
| Resonac Corporation | 3761 |
8 |
| E. I. du Pont de Nemours and Company | 3439 |
7 |
| ECKART GmbH | 311 |
7 |
| Toda Kogyo Corporation | 331 |
7 |
| 3m Innovative Properties Company | 17443 |
6 |
| Merck Patent GmbH | 5751 |
6 |
| Rohm and Haas Company | 2942 |
6 |
| Dow Global Technologies LLC | 11072 |
6 |
| The Chemours Company Fc, LLC | 1357 |
6 |
| Cqv Co., Ltd. | 69 |
6 |
| Imerys Minerals Limited | 115 |
6 |
| Nippon Light Metal Company, Ltd. | 695 |
6 |
| Saint-Gobain Ceramics & Plastics, Inc. | 804 |
6 |
| U.S. Silica Company | 113 |
6 |
| Susonity Commercial GmbH | 212 |
6 |
| Other owners | 368 |