- All sections
- B - Performing operationstransporting
- B43K - Implements for writing or drawing
- B43K 21/027 - Writing-core feeding mechanisms with sliding tube-like writing-core guide
Patent holdings for IPC class B43K 21/027
Total number of patents in this class: 20
10-year publication summary
|
1
|
0
|
3
|
2
|
1
|
1
|
3
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Pencil Company, Limited | 732 |
4 |
| Sanford, L.P. | 930 |
3 |
| Societe BIC | 1059 |
3 |
| Henkel AG & Co. KGaA | 10351 |
2 |
| Zebra Co., Ltd. | 94 |
2 |
| Kabushiki Kaisha Pilot Corporation | 323 |
1 |
| Micro Co., Ltd. | 7 |
1 |
| Sakura Color Products Corporation | 263 |
1 |
| Libo Cosmetics Co.,Ltd. | 25 |
1 |
| Zhuhai Ding Rong Plastic Products Co., Ltd | 25 |
1 |
| F.i.l.a.—fabrica Italiana LAPIS Ed Affini S.p.A. | 4 |
1 |
| Other owners | 0 |