- All sections
- B - Performing operations; transporting
- B43K - Implements for writing or drawing
- B43K 7/03 - Ink reservoirs; Ink cartridges pressurised, e.g. by gas
Patent holdings for IPC class B43K 7/03
Total number of patents in this class: 15
10-year publication summary
|
4
|
1
|
2
|
0
|
4
|
3
|
0
|
1
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kabushiki Kaisha Pilot Corporation | 321 |
3 |
| Sakura Color Products Corporation | 265 |
3 |
| Kotobuki & Co., Ltd. | 109 |
2 |
| Mitsubishi Pencil Company, Limited | 679 |
2 |
| Societe BIC | 1064 |
2 |
| Zebra Co., Ltd. | 93 |
2 |
| Yafa Pen Company | 10 |
1 |
| Other owners | 0 |