- All sections
- B - Performing operationstransporting
- B43L - Articles for writing or drawing uponaccessories for writing or drawing
- B43L 23/00 - Sharpeners for pencils or leads
Patent holdings for IPC class B43L 23/00
Total number of patents in this class: 39
10-year publication summary
|
6
|
4
|
6
|
2
|
5
|
4
|
3
|
4
|
0
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sanford, L.P. | 902 |
9 |
| Deli Group Co., Ltd. | 119 |
4 |
| Crayola LLC | 197 |
3 |
| Eisen GmbH | 14 |
2 |
| Fujian Soundy Enterprise Co., Ltd. | 3 |
2 |
| SDI Corporation | 32 |
2 |
| Acme United Corporation | 222 |
1 |
| Avon Products, Inc. | 489 |
1 |
| Bélet Holding SA | 9 |
1 |
| Dahle Burotechnik GmbH | 5 |
1 |
| Devecka Enterprises, Inc. | 1 |
1 |
| ID Signsystems, Inc. | 1 |
1 |
| Maped | 43 |
1 |
| Schwan-STABILO Cosmetics GmbH & Co. KG | 77 |
1 |
| University of Louisville Research Foundation, Inc. | 729 |
1 |
| Ningbo Tianhong Stationery Co.,Ltd. | 20 |
1 |
| Safety Nailer LLC | 6 |
1 |
| F.i.l.a.—fabrica Italiana LAPIS Ed Affini S.p.A. | 4 |
1 |
| Sunwood Holding Group Co., Ltd. | 5 |
1 |
| Eagle (Guangzhou) Technology Development Limited | 2 |
1 |
| Other owners | 3 |