- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 309/23 - Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an unsaturated carbon skeleton containing rings other than six-membered aromatic rings
Patent holdings for IPC class C07C 309/23
Total number of patents in this class: 29
10-year publication summary
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3
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3
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4
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0
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2
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2
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1
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2
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2
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1
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shin-Etsu Chemical Co., Ltd. | 5685 |
3 |
| DuPont Electronic Materials International, LLC | 429 |
3 |
| Amgen Inc. | 4106 |
2 |
| Sumitomo Chemical Company, Limited | 9047 |
2 |
| L'OREAL, Société Anonyme | 15635 |
1 |
| LG Chem, Ltd. | 17644 |
1 |
| Janssen Pharmaceutica N.V. | 3369 |
1 |
| JSR Corporation | 2525 |
1 |
| Ardenia Investments, Ltd. | 10 |
1 |
| Astech. Co., Ltd. | 17 |
1 |
| Egis Gyogyszergyar Nyilvanosan Mukodo Reszvenytarsasag | 60 |
1 |
| Lek Pharmaceuticals d.d. | 201 |
1 |
| Rohm and Haas Electronic Materials LLC | 154 |
1 |
| Teknologian Tutkimuskeskus VTT Oy | 536 |
1 |
| Tokyo Ohka Kogyo Co., Ltd. | 1549 |
1 |
| University of North Carolina at Wilmington | 32 |
1 |
| The University of Toledo | 425 |
1 |
| Genfleet Therapeutics (Shanghai) Inc. | 63 |
1 |
| Kallyope, Inc. | 61 |
1 |
| L' Oréal | 5547 |
1 |
| Other owners | 3 |