- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 309/31 - Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton of non-condensed six-membered aromatic rings of six-membered aromatic rings substituted by alkyl groups by alkyl groups containing at least three carbon atoms
Patent holdings for IPC class C07C 309/31
Total number of patents in this class: 62
10-year publication summary
|
4
|
2
|
9
|
2
|
5
|
2
|
3
|
3
|
1
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 20967 |
7 |
| ExxonMobil Chemical Patents Inc. | 3977 |
7 |
| FUJIFILM Corporation | 29489 |
4 |
| Shin-Etsu Chemical Co., Ltd. | 5676 |
4 |
| CEPSA Quimica, S.A. | 59 |
4 |
| Chevron Oronite Company LLC | 570 |
3 |
| Uop LLC | 4241 |
2 |
| Dow Global Technologies LLC | 10386 |
2 |
| Arizona Board of Regents on behalf of Arizona State University | 2653 |
2 |
| The Chemours Company Fc, LLC | 1245 |
2 |
| Nippon Chemical Industrial Co., Ltd. | 284 |
2 |
| The Procter & Gamble Company | 22031 |
1 |
| Unilever PLC | 3186 |
1 |
| Unilever N.V. | 3095 |
1 |
| Shell Internationale Research Maatschappij B.V. | 3546 |
1 |
| California Institute of Technology | 3981 |
1 |
| Henkel AG & Co. KGaA | 10590 |
1 |
| JSR Corporation | 2526 |
1 |
| Afton Chemical Corporation | 484 |
1 |
| ATTO-TEC GmbH | 6 |
1 |
| Other owners | 14 |