- All sections
- B - Performing operations; transporting
- 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: 21
10-year publication summary
|
1
|
1
|
0
|
3
|
2
|
1
|
1
|
3
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Pencil Company, Limited | 679 |
5 |
| Sanford, L.P. | 948 |
3 |
| Societe BIC | 1064 |
3 |
| Henkel AG & Co. KGaA | 10129 |
2 |
| Zebra Co., Ltd. | 93 |
2 |
| Kabushiki Kaisha Pilot Corporation | 321 |
1 |
| Micro Co., Ltd. | 7 |
1 |
| Sakura Color Products Corporation | 265 |
1 |
| Libo Cosmetics Co.,Ltd. | 22 |
1 |
| Zhuhai Ding Rong Plastic Products Co., Ltd | 24 |
1 |
| F.i.l.a.—fabrica Italiana LAPIS Ed Affini S.p.A. | 4 |
1 |
| Other owners | 0 |