- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 309/65 - Esters of sulfonic acids having sulfur atoms of esterified sulfo groups bound to acyclic carbon atoms of a saturated carbon skeleton
Patent holdings for IPC class C07C 309/65
Total number of patents in this class: 206
10-year publication summary
|
11
|
7
|
4
|
6
|
14
|
22
|
18
|
12
|
8
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29752 |
10 |
| Nihon Medi-physics Co., Ltd. | 181 |
9 |
| Sumitomo Chemical Company, Limited | 9095 |
7 |
| Board of Regents, The University of Texas System | 5917 |
6 |
| Kare Chemical Technologies Inc. | 24 |
5 |
| Emory University | 1651 |
4 |
| GE Healthcare Limited | 660 |
4 |
| Lantheus Medical Imaging, Inc. | 175 |
4 |
| ViiV Healthcare UK (No. 4) Limited | 21 |
4 |
| Mu Ionic Solutions Corporation | 164 |
4 |
| Shin-Etsu Chemical Co., Ltd. | 5745 |
3 |
| Adeka Corporation | 1366 |
3 |
| Annji Pharmaceutical Co., Ltd. | 16 |
3 |
| Dompé Farmaceutici S.p.A. | 275 |
3 |
| Galderma Research & Development | 390 |
3 |
| RENAULT s.a.s. | 5461 |
3 |
| International Business Machines Corporation | 61694 |
2 |
| E. I. du Pont de Nemours and Company | 3922 |
2 |
| Merck Patent GmbH | 5756 |
2 |
| JSR Corporation | 2535 |
2 |
| Other owners | 123 |