- All sections
- C - Chemistry; metallurgy
- C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K 5/18 - Amines; Quaternary ammonium compounds with aromatically bound amino groups
Patent holdings for IPC class C08K 5/18
Total number of patents in this class: 689
10-year publication summary
|
61
|
47
|
67
|
60
|
67
|
94
|
61
|
51
|
73
|
15
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Compagnie générale des établissements Michelin SCA | 2477 |
26 |
| Bridgestone Corporation | 7067 |
25 |
| Dow Global Technologies LLC | 10147 |
18 |
| BASF SE | 19740 |
16 |
| Sumitomo Rubber Industries, Ltd. | 4421 |
15 |
| Compagnie Generale des Etablissements Michelin | 4450 |
15 |
| Covestro Deutschland AG | 2429 |
12 |
| Zeon Corporation | 3854 |
11 |
| Chemtura Corporation | 211 |
10 |
| Daikin Industries, Ltd. | 9495 |
9 |
| Eastman Chemical Company | 2239 |
9 |
| 3m Innovative Properties Company | 18406 |
8 |
| Denka Company Limited | 2189 |
8 |
| Mitsubishi Gas Chemical Company, Inc. | 3188 |
8 |
| Flexsys Holdings, Inc. | 22 |
8 |
| DONGWOO FINE-CHEM Co., Ltd. | 1163 |
7 |
| Lanxess Deutschland GmbH | 1104 |
7 |
| LG Chem, Ltd. | 17205 |
6 |
| E. I. du Pont de Nemours and Company | 4345 |
6 |
| FUJIFILM Corporation | 27102 |
6 |
| Other owners | 459 |