- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 309/73 - Esters of sulfonic acids having sulfur atoms of esterified sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton to carbon atoms of non-condensed six-membered aromatic rings
Patent holdings for IPC class C07C 309/73
Total number of patents in this class: 234
10-year publication summary
|
12
|
14
|
15
|
15
|
21
|
18
|
10
|
14
|
9
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shin-Etsu Chemical Co., Ltd. | 5976 |
14 |
| FUJIFILM Corporation | 30296 |
13 |
| Sumitomo Chemical Company, Limited | 9013 |
8 |
| Lantheus Medical Imaging, Inc. | 169 |
4 |
| Les Laboratoires Servier | 500 |
4 |
| Bayer Schering Pharma AG | 343 |
3 |
| Boe Technology Group Co., Ltd. | 43166 |
3 |
| Daiichi Sankyo Company, Limited | 1892 |
3 |
| GE Healthcare Limited | 645 |
3 |
| Journey Medical Corporation | 96 |
3 |
| Eisai R&D Management Co., Ltd. | 1178 |
3 |
| Kare Chemical Technologies Inc. | 25 |
3 |
| International Business Machines Corporation | 62295 |
2 |
| Janssen Pharmaceutica N.V. | 3226 |
2 |
| Bayer Cropscience AG | 1882 |
2 |
| Bayer Pharma AG | 1025 |
2 |
| Hewlett-Packard Development Company, L.P. | 25337 |
2 |
| ExxonMobil Chemical Patents Inc. | 3819 |
2 |
| University of South Florida | 1872 |
2 |
| Adeka Corporation | 1367 |
2 |
| Other owners | 154 |