- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 309/01 - Sulfonic acids
Patent holdings for IPC class C07C 309/01
Total number of patents in this class: 29
10-year publication summary
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2
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3
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2
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0
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2
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0
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2
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4
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1
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2
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| DuPont Electronic Materials International, LLC | 429 |
4 |
| Ultimate EOR Services, LLC | 10 |
3 |
| Harcros Chemicals Inc. | 32 |
2 |
| Stepan Company | 583 |
2 |
| Samsung Electronics Co., Ltd. | 147003 |
1 |
| BASF SE | 20945 |
1 |
| Evonik Degussa GmbH | 1520 |
1 |
| Massachusetts Institute of Technology | 10066 |
1 |
| Shin-Etsu Chemical Co., Ltd. | 5674 |
1 |
| California Institute of Technology | 3984 |
1 |
| Asahi Glass Company, Limited | 2771 |
1 |
| JSR Corporation | 2529 |
1 |
| Acer Therapeutics Inc. | 31 |
1 |
| The Asan Foundation | 580 |
1 |
| Beijing University of Chemical Technology | 323 |
1 |
| Gharda Chemicals Limited | 57 |
1 |
| Korea Research Institute of Chemical Technology | 1394 |
1 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2381 |
1 |
| University of Kansas | 876 |
1 |
| Veolia ES Technical Solutions, L.L.C | 12 |
1 |
| Other owners | 2 |