- All sections
- A - Human necessities
- A46D - Manufacture of brushes
- A46D 9/04 - Cleaning
Patent holdings for IPC class A46D 9/04
Total number of patents in this class: 4
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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1
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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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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ebara Corporation | 1951 |
2 |
| Industry-University Cooperation Foundation Hanyang University | 1001 |
1 |
| Industry-university Cooperation Foundation Hanyang University Erica Campus | 511 |
1 |
| Other owners | 0 |