- 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: 39
10-year publication summary
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1
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3
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3
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2
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5
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2
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1
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2
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1
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1
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amneal Pharmaceuticals LLC | 111 |
2 |
| Daiichi Sankyo Company, Limited | 1886 |
2 |
| Emory University | 1635 |
2 |
| Megafine Pharma (P) Ltd | 17 |
2 |
| Oxford Photovoltaics Limited | 91 |
2 |
| Nanjing Chempion Biotechnology Co., Ltd. | 10 |
2 |
| Canon Inc. | 40398 |
1 |
| Bayer Cropscience AG | 2015 |
1 |
| Hitachi Maxell, Ltd. | 436 |
1 |
| FUJIFILM Corporation | 29586 |
1 |
| Sumitomo Chemical Company, Limited | 9047 |
1 |
| Dow Global Technologies LLC | 10413 |
1 |
| Showa Denko K.K. | 2200 |
1 |
| Mitsui Chemicals, Inc. | 3238 |
1 |
| President and Fellows of Harvard College | 5998 |
1 |
| Takeda Pharmaceutical Company Limited | 2706 |
1 |
| Carnegie Mellon University | 1552 |
1 |
| CellMosaic, Inc. | 13 |
1 |
| Gwangju Institute of Science and Technology | 763 |
1 |
| Japan Carlit Co., Ltd. | 15 |
1 |
| Other owners | 13 |