- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 309/19 - Sulfonic acids having sulfo groups bound to acyclic carbon atoms of a saturated carbon skeleton containing rings
Patent holdings for IPC class C07C 309/19
Total number of patents in this class: 123
10-year publication summary
|
8
|
15
|
9
|
9
|
12
|
5
|
3
|
6
|
5
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JSR Corporation | 2558 |
17 |
| Sumitomo Chemical Company, Limited | 8968 |
15 |
| FUJIFILM Corporation | 30516 |
14 |
| Shin-Etsu Chemical Co., Ltd. | 6109 |
13 |
| Tokyo Ohka Kogyo Co., Ltd. | 1563 |
12 |
| BELLUS Health Inc. | 10 |
5 |
| DuPont Electronic Materials International, LLC | 427 |
5 |
| Jicc-02 Co., Ltd. | 275 |
4 |
| Pfizer Inc. | 3396 |
3 |
| Alzheon, Inc. | 54 |
3 |
| Zoetis Services LLC | 1544 |
3 |
| International Business Machines Corporation | 62671 |
2 |
| Janssen Pharmaceutica N.V. | 3162 |
2 |
| Actavis Group PTC ehf | 392 |
2 |
| San-Apro Limited | 78 |
2 |
| Toyo Gosei Co., Ltd. | 106 |
2 |
| Arvinas Operations, Inc. | 262 |
2 |
| Vivesto AB | 23 |
2 |
| Samsung Electronics Co., Ltd. | 157946 |
1 |
| Merck Patent GmbH | 5729 |
1 |
| Other owners | 13 |