- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 50/22 - Quinones the quinoid structure being part of a condensed ring system containing four or more rings
Patent holdings for IPC class C07C 50/22
Total number of patents in this class: 10
10-year publication summary
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1
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0
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0
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0
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0
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1
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1
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1
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1
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kappa Bioscience AS | 45 |
2 |
| Daikin Industries, Ltd. | 10016 |
1 |
| Albany Molecular Research, Inc. | 41 |
1 |
| Essilor International (compagnie Generale D'optique) | 2992 |
1 |
| Kyoto University | 2802 |
1 |
| Tokyo Institute of Technology | 1374 |
1 |
| Universidade Federal do Rio de Janeiro | 59 |
1 |
| Centre National de La Recherche Scientifique (cnrs) | 3106 |
1 |
| Sieć Badawcza Łukasiewicz - Instytut Farmaceutyczny | 1 |
1 |
| Other owners | 0 |