- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 211/64 - Quaternary ammonium compounds having quaternised nitrogen atoms bound to carbon atoms of six-membered aromatic rings
Patent holdings for IPC class C07C 211/64
Total number of patents in this class: 81
10-year publication summary
|
1
|
0
|
6
|
16
|
8
|
5
|
6
|
5
|
3
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ExxonMobil Chemical Patents Inc. | 3976 |
9 |
| Samsung SDI Co., Ltd. | 8344 |
7 |
| Covestro Deutschland AG | 2754 |
4 |
| Techfields Biochem Co. Ltd | 17 |
3 |
| Dai Nippon Printing Co., Ltd. | 4089 |
2 |
| The General Hospital Corporation | 4735 |
2 |
| Yamamoto Chemicals, Inc. | 50 |
2 |
| Almirall, S.A. | 491 |
2 |
| DONGWOO FINE-CHEM Co., Ltd. | 1339 |
2 |
| Eastman Chemical Company | 2218 |
2 |
| SABIC SK Nexlene Company Pte. Ltd. | 74 |
2 |
| Techfields Inc | 9 |
2 |
| Agc, Inc. | 4861 |
2 |
| Canon Kabushiki Kaisha | 7063 |
2 |
| Canon Inc. | 40015 |
1 |
| Hitachi Chemical Company, Ltd. | 2346 |
1 |
| FUJIFILM Corporation | 29424 |
1 |
| Chevron U.S.A. Inc. | 3966 |
1 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4943 |
1 |
| ACADIA Pharmaceuticals Inc. | 206 |
1 |
| Other owners | 32 |