- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 309/20 - Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic unsaturated carbon skeleton
Patent holdings for IPC class C07C 309/20
Total number of patents in this class: 68
10-year publication summary
|
4
|
9
|
7
|
3
|
5
|
0
|
0
|
5
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kao Corporation | 4919 |
18 |
| Shin-Etsu Chemical Co., Ltd. | 5455 |
5 |
| Stepan Company | 573 |
4 |
| Chevron Oronite Company LLC | 561 |
3 |
| Lumos Pharma, Inc. | 25 |
3 |
| Shell Internationale Research Maatschappij B.V. | 3724 |
2 |
| Shell Oil Company | 2153 |
2 |
| Arkema Inc. | 1072 |
2 |
| Asahi Kasei Finechem Co., Ltd. | 10 |
2 |
| Chiesi Farmaceutici S.p.A. | 959 |
2 |
| DuPont Electronic Materials International, LLC | 365 |
2 |
| The Procter & Gamble Company | 22147 |
1 |
| BASF SE | 20421 |
1 |
| Genentech, Inc. | 3874 |
1 |
| Sumitomo Chemical Company, Limited | 8987 |
1 |
| Uop LLC | 4187 |
1 |
| Dow Global Technologies LLC | 10167 |
1 |
| JSR Corporation | 2475 |
1 |
| Wako Pure Chemical Industries, Ltd. | 142 |
1 |
| Aldeyra Therapeutics, Inc. | 108 |
1 |
| Other owners | 14 |