- All sections
- C - Chemistrymetallurgy
- C09C - Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling propertiespreparation of carbon black
- C09C 1/30 - Silicic acid
Patent holdings for IPC class C09C 1/30
Total number of patents in this class: 858
10-year publication summary
|
55
|
58
|
49
|
48
|
44
|
44
|
47
|
32
|
47
|
16
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Evonik Degussa GmbH | 1542 |
56 |
| Evonik Operations GmbH | 4045 |
33 |
| Wacker Chemie AG | 2102 |
30 |
| PPG Industries Ohio, Inc. | 3452 |
22 |
| Cabot Corporation | 548 |
22 |
| BASF SE | 20777 |
20 |
| 3m Innovative Properties Company | 17849 |
17 |
| The Chemours Company Tt, LLC | 35 |
16 |
| Rhodia Operations | 1582 |
16 |
| Colgate-Palmolive Company | 5789 |
12 |
| E. I. du Pont de Nemours and Company | 4118 |
11 |
| FUJIFILM Business Innovation Corp. | 7569 |
10 |
| Nippon Sheet Glass Company, Limited | 998 |
9 |
| Merck Patent GmbH | 5850 |
8 |
| Centre National de La Recherche Scientifique | 10321 |
7 |
| Grace GmbH & Co. KG | 27 |
7 |
| Nalco Company | 570 |
7 |
| Nissan Chemical Corporation | 1974 |
7 |
| Becton, Dickinson and Company | 7226 |
6 |
| Shin-Etsu Chemical Co., Ltd. | 5598 |
6 |
| Other owners | 536 |