- All sections
- B - Performing operations; transporting
- B43K - Implements for writing or drawing
- B43K 3/04 - Nib holders with retractable nibs
Patent holdings for IPC class B43K 3/04
Total number of patents in this class: 7
10-year publication summary
|
0
|
0
|
2
|
1
|
0
|
1
|
1
|
2
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qingdao Best Point Stationery Co., Ltd | 18 |
2 |
| Intel Corporation | 45621 |
1 |
| Kokuyo Co., Ltd. | 210 |
1 |
| Mitsubishi Pencil Company, Limited | 679 |
1 |
| Morris Corporation | 23 |
1 |
| Wencheng County Jianchuang Co., Ltd. | 1 |
1 |
| Other owners | 0 |