- All sections
- B - Performing operations; transporting
- B43K - Implements for writing or drawing
- B43K 21/16 - Writing-core feeding mechanisms with stepwise feed of writing-cores
Patent holdings for IPC class B43K 21/16
Total number of patents in this class: 57
10-year publication summary
|
7
|
3
|
3
|
7
|
5
|
8
|
2
|
4
|
3
|
2
|
| 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 |
21 |
| Kotobuki & Co., Ltd. | 109 |
13 |
| Kabushiki Kaisha Pilot Corporation | 321 |
5 |
| Societe BIC | 1064 |
3 |
| Wenzhou Tianjiao Pen Industrial Co., Ltd. | 8 |
3 |
| Wacom Co., Ltd. | 1629 |
2 |
| Colgate-Palmolive Company | 5325 |
1 |
| A.t.x. International, Inc. | 15 |
1 |
| Federal Package Network, Inc. | 17 |
1 |
| Kokuyo Co., Ltd. | 210 |
1 |
| Micro Co., Ltd. | 7 |
1 |
| Raymay Fujii Corporation | 15 |
1 |
| Sakura Color Products Corporation | 265 |
1 |
| Go Forward AS | 1 |
1 |
| Pica-Marker Vermögens GmbH & Co. KG | 2 |
1 |
| Steadyscrib, LLC | 3 |
1 |
| Other owners | 0 |