- All sections
- C - Chemistrymetallurgy
- C08F - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08F 220/66 - Anhydrides
Patent holdings for IPC class C08F 220/66
Total number of patents in this class: 7
10-year publication summary
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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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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eastman Kodak Company | 2690 |
2 |
| Henkel AG & Co. KGaA | 10707 |
1 |
| Construction Research & Technology GmbH | 618 |
1 |
| Henkel IP & Holding GmbH | 561 |
1 |
| ISP Investments Inc. | 450 |
1 |
| Kemira Oyj | 1228 |
1 |
| Other owners | 0 |