- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 309/42 - Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing singly-bound oxygen atoms bound to the carbon skeleton having the sulfo groups bound to carbon atoms of non-condensed six-membered aromatic rings
Patent holdings for IPC class C07C 309/42
Total number of patents in this class: 82
10-year publication summary
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6
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6
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7
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7
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5
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6
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7
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4
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8
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30034 |
14 |
| Tokyo Ohka Kogyo Co., Ltd. | 1550 |
6 |
| Shin-Etsu Chemical Co., Ltd. | 5861 |
5 |
| Wisconsin Alumni Research Foundation | 3918 |
3 |
| Life Technologies Corporation | 3373 |
3 |
| Henkel AG & Co. KGaA | 10691 |
3 |
| JSR Corporation | 2545 |
3 |
| Canopy Growth Corporation | 219 |
3 |
| Studiengesellschaft Kohle mbH | 96 |
3 |
| Novo Nordisk A/S | 2293 |
3 |
| Action Medicines, S.L. | 15 |
2 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2400 |
2 |
| Rohm and Haas Electronic Materials LLC | 154 |
2 |
| Cmblu Energy AG | 56 |
2 |
| Samsung Electronics Co., Ltd. | 151485 |
1 |
| Xerox Corporation | 5885 |
1 |
| Centre National de La Recherche Scientifique | 10805 |
1 |
| Dow Global Technologies LLC | 10701 |
1 |
| Chevron U.S.A. Inc. | 4048 |
1 |
| University of Southern California | 2126 |
1 |
| Other owners | 22 |