- All sections
- B - Performing operationstransporting
- B43L - Articles for writing or drawing uponaccessories for writing or drawing
- B43L 11/08 - Non-circular-curve-drawing instruments for drawing involutes
Patent holdings for IPC class B43L 11/08
Total number of patents in this class: 3
10-year publication summary
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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
|
|---|---|---|
| Crayola LLC | 198 |
1 |
| Genie Toys plc | 9 |
1 |
| Ostberg Design APS | 1 |
1 |
| Other owners | 0 |