- All sections
- B - Performing operations; transporting
- B43K - Implements for writing or drawing
- B43K 21/00 - Propelling pencils
Patent holdings for IPC class B43K 21/00
Total number of patents in this class: 97
10-year publication summary
|
14
|
11
|
11
|
6
|
21
|
11
|
8
|
11
|
2
|
1
|
| 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 |
18 |
| Societe BIC | 1064 |
10 |
| Kabushiki Kaisha Pilot Corporation | 321 |
6 |
| Kotobuki & Co., Ltd. | 109 |
6 |
| Staedtler SE | 233 |
5 |
| Tokiwa Corporation | 146 |
4 |
| Zebra Co., Ltd. | 93 |
3 |
| The Procter & Gamble Company | 22178 |
2 |
| Microsoft Technology Licensing, LLC | 51439 |
2 |
| Avon Products, Inc. | 699 |
2 |
| STABILO International GmbH | 44 |
2 |
| Staedtler Mars GmbH & Co. KG | 41 |
2 |
| Kyocera Corporation | 12735 |
1 |
| Boe Technology Group Co., Ltd. | 35384 |
1 |
| Acer Incorporated | 1864 |
1 |
| AMOREPACIFIC Corporation | 2606 |
1 |
| Biopencil S.A. | 1 |
1 |
| BISS Product Development LLC | 22 |
1 |
| Crayola LLC | 177 |
1 |
| Eisen GmbH | 11 |
1 |
| Other owners | 27 |