- All sections
- C - Chemistry; metallurgy
- 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: 494
10-year publication summary
|
28
|
31
|
41
|
35
|
55
|
51
|
47
|
52
|
27
|
16
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| 3m Innovative Properties Company | 18406 |
15 |
| FUJIFILM Corporation | 27102 |
8 |
| Bridgestone Corporation | 7067 |
8 |
| Elementis Specialties, Inc. | 129 |
8 |
| Evonik Operations GmbH | 3879 |
8 |
| Sumitomo Rubber Industries, Ltd. | 4421 |
7 |
| Ecolab USA Inc. | 5190 |
7 |
| Nitto Kasei Co., Ltd. | 102 |
7 |
| BASF SE | 19740 |
6 |
| Nitto Denko Corporation | 7879 |
6 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
6 |
| Dow Global Technologies LLC | 10147 |
6 |
| BYK-Chemie GmbH | 437 |
6 |
| Daikin Industries, Ltd. | 9495 |
5 |
| Kaneka Corporation | 4445 |
5 |
| King Abdullah University of Science and Technology | 1703 |
5 |
| Novapharm Research (Australia) Pty Ltd | 31 |
5 |
| Ticona LLC | 547 |
5 |
| LG Chem, Ltd. | 17205 |
4 |
| The Regents of the University of California | 18943 |
4 |
| Other owners | 363 |