- 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: 201
10-year publication summary
|
7
|
4
|
6
|
14
|
22
|
18
|
12
|
8
|
8
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30192 |
11 |
| Sumitomo Chemical Company, Limited | 9048 |
7 |
| Board of Regents, The University of Texas System | 6032 |
6 |
| Kare Chemical Technologies Inc. | 25 |
5 |
| Emory University | 1693 |
4 |
| GE Healthcare Limited | 648 |
4 |
| Lantheus Medical Imaging, Inc. | 171 |
4 |
| ViiV Healthcare UK (No. 4) Limited | 21 |
4 |
| Mu Ionic Solutions Corporation | 166 |
4 |
| Shin-Etsu Chemical Co., Ltd. | 5911 |
3 |
| Adeka Corporation | 1367 |
3 |
| Annji Pharmaceutical Co., Ltd. | 16 |
3 |
| Galderma Research & Development | 372 |
3 |
| Nihon Medi-physics Co., Ltd. | 179 |
3 |
| RENAULT s.a.s. | 5408 |
3 |
| International Business Machines Corporation | 62123 |
2 |
| E. I. du Pont de Nemours and Company | 3722 |
2 |
| Merck Patent GmbH | 5723 |
2 |
| JSR Corporation | 2550 |
2 |
| Boe Technology Group Co., Ltd. | 42839 |
2 |
| Other owners | 124 |