- All sections
- B - Performing operations; transporting
- B43L - Articles for writing or drawing upon; accessories for writing or drawing
- B43L 19/00 - Erasers, rubbers, or erasing devices; Holders therefor
Patent holdings for IPC class B43L 19/00
Total number of patents in this class: 218
10-year publication summary
|
19
|
18
|
17
|
25
|
18
|
21
|
8
|
13
|
4
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kokuyo Co., Ltd. | 210 |
31 |
| Societe BIC | 1064 |
20 |
| Fujicopian Co., Ltd. | 39 |
17 |
| Mitsubishi Pencil Company, Limited | 679 |
12 |
| Sakura Color Products Corporation | 265 |
10 |
| Kabushiki Kaisha Pilot Corporation | 321 |
8 |
| Tombow Pencil Co., Ltd. | 137 |
8 |
| Sanford, L.P. | 948 |
7 |
| Seed Company Limited | 84 |
6 |
| Staedtler SE | 233 |
6 |
| Kotobuki & Co., Ltd. | 109 |
5 |
| Plus Corporation | 79 |
5 |
| The Pilot Ink Co., Ltd. | 95 |
4 |
| Widetech Manufacturing SDN. BHD. | 5 |
4 |
| Kokuyo S&T Co., Ltd. | 20 |
4 |
| Delta of Sweden AB | 18 |
3 |
| Comsero, Inc. | 27 |
3 |
| Yiyang Twingo Stationery Co., Ltd. | 4 |
3 |
| BIC Violex Single Member S.A. | 148 |
3 |
| Amara Rahman Durham | 2 |
2 |
| Other owners | 57 |