- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 251/30 - Compounds containing nitrogen atoms doubly- bound to a carbon skeleton containing imino groups having nitrogen atoms of imino groups quaternised
Patent holdings for IPC class C07C 251/30
Total number of patents in this class: 33
10-year publication summary
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3
|
3
|
2
|
5
|
3
|
1
|
2
|
1
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amneal Pharmaceuticals LLC | 114 |
2 |
| Daiichi Sankyo Company, Limited | 1894 |
2 |
| Megafine Pharma (P) Ltd | 19 |
2 |
| Oxford Photovoltaics Limited | 97 |
2 |
| Nanjing Chempion Biotechnology Co., Ltd. | 10 |
2 |
| Canon Inc. | 44414 |
1 |
| Sumitomo Chemical Company, Limited | 8989 |
1 |
| Dow Global Technologies LLC | 11051 |
1 |
| Showa Denko K.K. | 2054 |
1 |
| President and Fellows of Harvard College | 6118 |
1 |
| Takeda Pharmaceutical Company Limited | 2700 |
1 |
| Carnegie Mellon University | 1652 |
1 |
| CellMosaic, Inc. | 13 |
1 |
| Emory University | 1727 |
1 |
| Gwangju Institute of Science and Technology | 846 |
1 |
| Japan Carlit Co., Ltd. | 13 |
1 |
| Kyoto University | 2941 |
1 |
| Loctite (r & D) Limited | 33 |
1 |
| National University Corporation Kobe University | 583 |
1 |
| PetroChina Company Limited | 891 |
1 |
| Other owners | 8 |