- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 211/63 - Quaternary ammonium compounds having quaternised nitrogen atoms bound to acyclic carbon atoms
Patent holdings for IPC class C07C 211/63
Total number of patents in this class: 554
10-year publication summary
|
47
|
37
|
47
|
46
|
41
|
33
|
34
|
33
|
31
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tokuyama Corporation | 1477 |
21 |
| The Procter & Gamble Company | 21855 |
11 |
| Shin-Etsu Chemical Co., Ltd. | 6096 |
11 |
| Tokyo Ohka Kogyo Co., Ltd. | 1562 |
9 |
| BASF SE | 21303 |
8 |
| Nitto Kasei Co., Ltd. | 110 |
8 |
| National Institute of Advanced Industrial Science and Technology | 3794 |
7 |
| Temple University of the Commonwealth System of Higher Education | 638 |
7 |
| FUJIFILM Corporation | 30514 |
6 |
| Nectar Health Sciences Inc. | 8 |
6 |
| The Regents of the University of California | 20745 |
5 |
| Merck Patent GmbH | 5728 |
5 |
| Central Glass Company, Limited | 1293 |
5 |
| Covestro Deutschland AG | 2833 |
5 |
| Elementis Specialties, Inc. | 156 |
5 |
| Innospec Limited | 408 |
5 |
| The Lubrizol Corporation | 1249 |
5 |
| Stella Chemifa Corporation | 120 |
5 |
| Villanova University | 43 |
5 |
| Santen | 13 |
5 |
| Other owners | 410 |