- All sections
- C - Chemistry; metallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 309/04 - Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton containing only one sulfo group
Patent holdings for IPC class C07C 309/04
Total number of patents in this class: 356
10-year publication summary
|
36
|
30
|
46
|
32
|
40
|
22
|
28
|
24
|
24
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 20387 |
30 |
| Amgen Inc. | 3897 |
12 |
| Sumitomo Chemical Company, Limited | 8976 |
12 |
| Shin-Etsu Chemical Co., Ltd. | 5439 |
10 |
| Adverio Pharma GmbH | 44 |
10 |
| Grillo-Werke AG | 35 |
7 |
| Tokyo Ohka Kogyo Co., Ltd. | 1509 |
7 |
| Arkema France | 3887 |
6 |
| Bristol-myers Squibb Company | 4883 |
5 |
| FUJIFILM Corporation | 28506 |
5 |
| GLOBALFOUNDRIES U.S. Inc. | 6431 |
5 |
| WisTa Laboratories Ltd. | 125 |
5 |
| Arkema Inc. | 1073 |
4 |
| Daiichi Sankyo Company, Limited | 1864 |
4 |
| Mitsubishi Materials Corporation | 2408 |
4 |
| Mitsubishi Materials Electronic Chemicals Co., Ltd. | 129 |
4 |
| Pharmatrophix, Inc. | 22 |
4 |
| Zhejiang Hisun Pharmaceutical Co., Ltd. | 269 |
4 |
| Eidos Therapeutics, Inc. | 15 |
4 |
| DuPont Electronic Materials International, LLC | 365 |
4 |
| Other owners | 210 |