- All sections
- C - Chemistry; metallurgy
- 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: 510
10-year publication summary
|
34
|
30
|
47
|
37
|
47
|
46
|
41
|
33
|
32
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tokuyama Corporation | 1248 |
14 |
| The Procter & Gamble Company | 22178 |
12 |
| BASF SE | 19740 |
9 |
| Nitto Kasei Co., Ltd. | 102 |
8 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
7 |
| Nectar Health Sciences Inc. | 10 |
7 |
| Merck Patent GmbH | 5909 |
6 |
| National Institute of Advanced Industrial Science and Technology | 3677 |
6 |
| Sachem, Inc. | 74 |
6 |
| Temple University of the Commonwealth System of Higher Education | 583 |
6 |
| The Regents of the University of California | 18943 |
5 |
| Central Glass Company, Limited | 1244 |
5 |
| Elementis Specialties, Inc. | 129 |
5 |
| Innospec Limited | 308 |
5 |
| Santen SAS | 83 |
5 |
| Stella Chemifa Corporation | 118 |
5 |
| Villanova University | 29 |
5 |
| Halliburton Energy Services, Inc. | 20165 |
4 |
| Chevron U.S.A. Inc. | 3774 |
4 |
| Life Technologies Corporation | 3068 |
4 |
| Other owners | 382 |