- 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 1/30 - Silicic acid
Patent holdings for IPC class C09C 1/30
Total number of patents in this class: 854
10-year publication summary
84
|
55
|
58
|
49
|
48
|
44
|
44
|
47
|
30
|
16
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Evonik Degussa GmbH | 1574 |
56 |
Wacker Chemie AG | 2091 |
34 |
Evonik Operations GmbH | 3879 |
32 |
PPG Industries Ohio, Inc. | 3430 |
23 |
Cabot Corporation | 575 |
20 |
BASF SE | 19740 |
19 |
3m Innovative Properties Company | 18406 |
17 |
The Chemours Company Tt, LLC | 39 |
16 |
Rhodia Operations | 1645 |
16 |
E. I. du Pont de Nemours and Company | 4345 |
11 |
Colgate-Palmolive Company | 5325 |
11 |
FUJIFILM Business Innovation Corp. | 7395 |
10 |
Merck Patent GmbH | 5909 |
8 |
Nippon Sheet Glass Company, Limited | 992 |
8 |
Centre National de La Recherche Scientifique | 9632 |
7 |
Grace GmbH & Co. KG | 29 |
7 |
JGC Catalysts and Chemicals Ltd. | 238 |
7 |
Nalco Company | 620 |
7 |
Becton, Dickinson and Company | 6712 |
6 |
Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
6 |
Other owners | 533 |