- All sections
- B - Performing operations; transporting
- B43K - Implements for writing or drawing
- B43K 8/12 - Arrangements for feeding ink to writing-points writing-points or writing-point units being separable from reservoir
Patent holdings for IPC class B43K 8/12
Total number of patents in this class: 20
10-year publication summary
|
2
|
1
|
1
|
3
|
1
|
1
|
3
|
0
|
2
|
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 |
3 |
| Societe BIC | 1064 |
3 |
| Kabushiki Kaisha Pilot Corporation | 321 |
2 |
| 3S Corporation | 8 |
1 |
| Econobuild.com LLC | 2 |
1 |
| Helen of Troy Limited | 1767 |
1 |
| Kuretake Co., Ltd. | 131 |
1 |
| Letraset Limited | 3 |
1 |
| MEI Shual Cosmetics Co., Ltd. | 3 |
1 |
| Porex Corporation | 92 |
1 |
| Sanford, L.P. | 948 |
1 |
| Schwan-STABILO Cosmetics GmbH & Co. KG | 100 |
1 |
| SDI Corporation | 32 |
1 |
| SKM Industries Inc. | 31 |
1 |
| China First Pencil Co., Ltd | 6 |
1 |
| Other owners | 0 |