- All sections
- C - Chemistrymetallurgy
- C09C - Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling propertiespreparation of carbon black
- C09C 1/36 - Compounds of titanium
Patent holdings for IPC class C09C 1/36
Total number of patents in this class: 985
10-year publication summary
|
69
|
46
|
49
|
43
|
47
|
35
|
51
|
37
|
36
|
25
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kronos International, Inc. | 113 |
50 |
| Tronox LLC | 160 |
47 |
| E. I. du Pont de Nemours and Company | 3899 |
40 |
| Rohm and Haas Company | 2934 |
40 |
| The Chemours Company Fc, LLC | 1261 |
30 |
| BASF SE | 21087 |
28 |
| Ishihara Sangyo Kaisha, Ltd. | 667 |
23 |
| Dow Global Technologies LLC | 10555 |
15 |
| JGC Catalysts and Chemicals Ltd. | 256 |
14 |
| Merck Patent GmbH | 5759 |
12 |
| The Regents of the University of California | 20289 |
11 |
| e Ink Corporation | 1523 |
11 |
| Omya International AG | 770 |
11 |
| PPG Industries Ohio, Inc. | 3413 |
10 |
| Shin-Etsu Chemical Co., Ltd. | 5784 |
9 |
| 3m Innovative Properties Company | 17730 |
8 |
| Sakai Chemical Industry Co., Ltd. | 275 |
8 |
| Huntsman P&A UK Limited | 16 |
8 |
| SWIMC, LLC | 2514 |
8 |
| Evonik Degussa GmbH | 1460 |
7 |
| Other owners | 595 |