- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 309/21 - Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic unsaturated carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton
Patent holdings for IPC class C07C 309/21
Total number of patents in this class: 14
10-year publication summary
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2
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Board of Regents, The University of Texas System | 5704 |
3 |
| Max-delbruck-centrum fur Molekulare Medizin | 50 |
2 |
| Mitsubishi Rayon Co., Ltd. | 928 |
1 |
| National Institute of Advanced Industrial Science and Technology | 3760 |
1 |
| Purdue Research Foundation | 3541 |
1 |
| Asahi Kasei Finechem Co., Ltd. | 10 |
1 |
| China Petroleum & Chemical Corporation | 1843 |
1 |
| Innospec Active Chemicals LLC | 16 |
1 |
| Sinopec Research Institute of Petroleum Engineering | 26 |
1 |
| S.p.c.m. SA | 248 |
1 |
| Max-delbrueck-centrum fuer Molekulare Medizin | 24 |
1 |
| Other owners | 0 |