- All sections
- A - Human necessities
- A61K - Preparations for medical, dental or toiletry purposes
- A61K 6/66 - Photochromic dyes
Patent holdings for IPC class A61K 6/66
Total number of patents in this class: 6
10-year publication summary
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0
|
0
|
0
|
2
|
1
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0
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2
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0
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2
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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
|
|---|---|---|
| Ivoclar Vivadent AG | 1052 |
2 |
| Mühlbauer Technology GmbH | 320 |
2 |
| GC Corporation | 449 |
1 |
| The Regents of the University of Colorado, a body corporate | 2667 |
1 |
| Other owners | 0 |