- All sections
- B - Performing operationstransporting
- B43K - Implements for writing or drawing
- B43K 21/24 - Assembling, finishing, or repairing propelling pencils
Patent holdings for IPC class B43K 21/24
Total number of patents in this class: 4
10-year publication summary
|
0
|
0
|
2
|
1
|
0
|
0
|
0
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Boe Technology Group Co., Ltd. | 42660 |
1 |
| Hefei Xinsheng Optoelectronics Technology Co., Ltd. | 2605 |
1 |
| Societe BIC | 1013 |
1 |
| Tokiwa Corporation | 142 |
1 |
| Other owners | 0 |