- 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: 538
10-year publication summary
|
41
|
35
|
55
|
51
|
48
|
54
|
28
|
44
|
28
|
16
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| 3m Innovative Properties Company | 17481 |
16 |
| Bridgestone Corporation | 7262 |
10 |
| Evonik Operations GmbH | 4368 |
9 |
| FUJIFILM Corporation | 30516 |
8 |
| Shin-Etsu Chemical Co., Ltd. | 6109 |
8 |
| Nitto Denko Corporation | 8540 |
7 |
| Dow Global Technologies LLC | 10960 |
7 |
| Sumitomo Rubber Industries, Ltd. | 4727 |
7 |
| Kaneka Corporation | 4713 |
7 |
| Ecolab USA Inc. | 5803 |
7 |
| Elementis Specialties, Inc. | 156 |
7 |
| Nitto Kasei Co., Ltd. | 110 |
7 |
| BASF SE | 21308 |
6 |
| Daikin Industries, Ltd. | 10504 |
6 |
| BYK-Chemie GmbH | 446 |
6 |
| LG Chem, Ltd. | 17929 |
5 |
| Canon Inc. | 43869 |
5 |
| Seiko Epson Corporation | 20259 |
5 |
| Ticona LLC | 604 |
5 |
| The Regents of the University of California | 20778 |
4 |
| Other owners | 396 |