- All sections
- C - Chemistrymetallurgy
- C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K 5/19 - Quaternary ammonium compounds
Patent holdings for IPC class C08K 5/19
Total number of patents in this class: 527
10-year publication summary
|
31
|
41
|
35
|
54
|
51
|
48
|
54
|
29
|
44
|
16
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| 3m Innovative Properties Company | 17819 |
15 |
| Bridgestone Corporation | 7237 |
10 |
| FUJIFILM Corporation | 29424 |
8 |
| Elementis Specialties, Inc. | 150 |
8 |
| Evonik Operations GmbH | 4117 |
8 |
| Nitto Denko Corporation | 8246 |
7 |
| Shin-Etsu Chemical Co., Ltd. | 5663 |
7 |
| Dow Global Technologies LLC | 10349 |
7 |
| Sumitomo Rubber Industries, Ltd. | 4651 |
7 |
| Kaneka Corporation | 4529 |
7 |
| Ecolab USA Inc. | 5499 |
7 |
| Nitto Kasei Co., Ltd. | 106 |
7 |
| BASF SE | 20915 |
6 |
| Daikin Industries, Ltd. | 10016 |
6 |
| BYK-Chemie GmbH | 443 |
6 |
| Canon Inc. | 40015 |
5 |
| Ticona LLC | 593 |
5 |
| LG Chem, Ltd. | 17639 |
4 |
| The Regents of the University of California | 19943 |
4 |
| Xerox Corporation | 7000 |
4 |
| Other owners | 389 |