- 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
|
3
|
1
|
6
|
6
|
2
|
1
|
2
|
1
|
2
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nissan Chemical Corporation | 2124 |
5 |
| Mitsubishi Chemical Corporation | 4648 |
3 |
| Bristol-myers Squibb Company | 4799 |
2 |
| Shin-Etsu Chemical Co., Ltd. | 5831 |
2 |
| Mitsubishi Rayon Co., Ltd. | 884 |
2 |
| JSR Corporation | 2554 |
2 |
| Canopy Growth Corporation | 218 |
2 |
| Nippon Paper Industries Co., Ltd. | 832 |
2 |
| TheracosBio, LLC | 21 |
2 |
| FUJIFILM Corporation | 29992 |
1 |
| AmDerma Pharmaceuticals, LLC | 1 |
1 |
| API Corporation | 196 |
1 |
| Divi's Laboratories, Ltd. | 26 |
1 |
| Genzyme Corporation | 1323 |
1 |
| Nanjing University | 760 |
1 |
| National University Corporation Nagoya University | 827 |
1 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2398 |
1 |
| Nissan Chemical Industries, Ltd. | 1689 |
1 |
| Sanko Co., Ltd. | 50 |
1 |
| Seoul National University Industry Foundation | 303 |
1 |
| Other owners | 3 |