- All sections
- C - Chemistrymetallurgy
- 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: 387
10-year publication summary
|
36
|
27
|
41
|
28
|
37
|
16
|
27
|
22
|
23
|
25
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 21087 |
31 |
| Amgen Inc. | 4258 |
13 |
| Sumitomo Chemical Company, Limited | 9109 |
12 |
| Shin-Etsu Chemical Co., Ltd. | 5784 |
10 |
| Adverio Pharma GmbH | 45 |
10 |
| Grillo-Werke AG | 26 |
7 |
| Arkema France | 4173 |
6 |
| Tokyo Ohka Kogyo Co., Ltd. | 1547 |
6 |
| WisTa Laboratories Ltd. | 138 |
6 |
| Bristol-myers Squibb Company | 4820 |
5 |
| Genentech, Inc. | 4015 |
5 |
| FUJIFILM Corporation | 29817 |
5 |
| GLOBALFOUNDRIES U.S. Inc. | 6418 |
5 |
| Eidos Therapeutics, Inc. | 19 |
5 |
| Apotex Inc. | 213 |
4 |
| Arkema Inc. | 1067 |
4 |
| Daiichi Sankyo Company, Limited | 1877 |
4 |
| Lantheus Medical Imaging, Inc. | 174 |
4 |
| Mitsubishi Materials Corporation | 2472 |
4 |
| Mitsubishi Materials Electronic Chemicals Co., Ltd. | 135 |
4 |
| Other owners | 237 |