- All sections
- B - Performing operationstransporting
- B43K - Implements for writing or drawing
- B43K 8/04 - Arrangements for feeding ink to writing-points
Patent holdings for IPC class B43K 8/04
Total number of patents in this class: 81
10-year publication summary
|
7
|
10
|
14
|
5
|
9
|
4
|
6
|
4
|
3
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Pencil Company, Limited | 823 |
16 |
| Kabushiki Kaisha Pilot Corporation | 353 |
8 |
| Flocon, Inc. | 43 |
7 |
| Milwaukee Electric Tool Corporation | 4967 |
4 |
| Societe BIC | 1009 |
4 |
| WANG, Shuijuan | 9 |
4 |
| Chemicos Creations Ltd. | 8 |
3 |
| Ningbo Wuyun Pen Manufacturing Co., Ltd. | 5 |
3 |
| The Pilot Ink Co., Ltd. | 87 |
3 |
| Purdue Research Foundation | 3921 |
2 |
| 3S Corporation | 8 |
2 |
| Crayola LLC | 197 |
2 |
| Taisei Co., Ltd. | 5 |
2 |
| V Spark Co., Ltd. | 4 |
2 |
| Qingdao Changlong Stationery Co., Ltd. | 9 |
2 |
| 3m Innovative Properties Company | 17481 |
1 |
| Raytheon Company | 8448 |
1 |
| Epoch Chemical Co., Ltd. | 4 |
1 |
| Faber-Castell AG | 161 |
1 |
| Gebr. Schmidt Fabrik fuer Feinmechanik GmbH & Co. KG | 3 |
1 |
| Other owners | 12 |