- All sections
- D - Textilespaper
- D05B - Sewing
- D05B 87/04 - Needle-threading devices with optical devices to assist threading
Patent holdings for IPC class D05B 87/04
Total number of patents in this class: 2
10-year publication summary
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1
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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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1
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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
|
|---|---|---|
| Singer Sourcing Limited LLC, a legal entity | 419 |
1 |
| Universidad Tecnológica de Panamá | 93 |
1 |
| Other owners | 0 |