- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 21/09 - Dichloro-butenes
Patent holdings for IPC class C07C 21/09
Total number of patents in this class: 5
10-year publication summary
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0
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0
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0
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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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0
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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
|
|---|---|---|
| Showa Denko K.K. | 2044 |
2 |
| The Chemours Company Fc, LLC | 1365 |
1 |
| Tosoh Corporation | 1444 |
1 |
| E. I. DuPont de Nemours & Co. | 58 |
1 |
| Other owners | 0 |