- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 309/75 - Esters of sulfonic acids having sulfur atoms of esterified sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing singly-bound oxygen atoms bound to the carbon skeleton
Patent holdings for IPC class C07C 309/75
Total number of patents in this class: 36
10-year publication summary
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1
|
3
|
1
|
6
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6
|
2
|
1
|
2
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1
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nissan Chemical Corporation | 2093 |
5 |
| Mitsubishi Chemical Corporation | 4593 |
3 |
| Bristol-myers Squibb Company | 4848 |
2 |
| Shin-Etsu Chemical Co., Ltd. | 5745 |
2 |
| Mitsubishi Rayon Co., Ltd. | 897 |
2 |
| JSR Corporation | 2535 |
2 |
| Canopy Growth Corporation | 223 |
2 |
| Nippon Paper Industries Co., Ltd. | 833 |
2 |
| TheracosBio, LLC | 20 |
2 |
| FUJIFILM Corporation | 29752 |
1 |
| AmDerma Pharmaceuticals, LLC | 1 |
1 |
| API Corporation | 196 |
1 |
| Divi's Laboratories, Ltd. | 26 |
1 |
| Genzyme Corporation | 1303 |
1 |
| Nanjing University | 742 |
1 |
| National University Corporation Nagoya University | 840 |
1 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2391 |
1 |
| Nissan Chemical Industries, Ltd. | 1699 |
1 |
| Sanko Co., Ltd. | 50 |
1 |
| Seoul National University Industry Foundation | 315 |
1 |
| Other owners | 3 |