- All sections
- C - Chemistry; metallurgy
- C09C - Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties; preparation of carbon black
- C09C 1/40 - Compounds of aluminium
Patent holdings for IPC class C09C 1/40
Total number of patents in this class: 548
10-year publication summary
|
47
|
43
|
46
|
24
|
30
|
17
|
33
|
29
|
30
|
15
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| DIC Corporation | 3597 |
18 |
| Omya International AG | 816 |
18 |
| Merck Patent GmbH | 5909 |
13 |
| Nippon Sheet Glass Company, Limited | 992 |
13 |
| Sasol (USA) Corporation | 69 |
10 |
| Cqv Co., Ltd. | 70 |
9 |
| ECKART GmbH | 331 |
8 |
| Omya Development AG | 100 |
8 |
| BASF SE | 19740 |
7 |
| E. I. du Pont de Nemours and Company | 4345 |
7 |
| PPG Industries Ohio, Inc. | 3430 |
7 |
| The Chemours Company Fc, LLC | 1107 |
7 |
| Saint-Gobain Ceramics & Plastics, Inc. | 812 |
7 |
| 3m Innovative Properties Company | 18406 |
6 |
| Cabot Corporation | 575 |
6 |
| Imerys Minerals Limited | 131 |
6 |
| Toda Kogyo Corporation | 323 |
6 |
| Rohm and Haas Company | 2805 |
5 |
| Clariant International Ltd. | 978 |
5 |
| Coatex S.A.S. | 231 |
5 |
| Other owners | 377 |