- All sections
- B - Performing operations; transporting
- B43L - Articles for writing or drawing upon; accessories 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: 38
10-year publication summary
5
|
5
|
6
|
4
|
6
|
2
|
5
|
4
|
3
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Sanford, L.P. | 948 |
9 |
Acme United Corporation | 239 |
3 |
Crayola LLC | 177 |
2 |
Eisen GmbH | 11 |
2 |
Fujian Soundy Enterprise Co., Ltd. | 2 |
2 |
SDI Corporation | 32 |
2 |
Avon Products, Inc. | 699 |
1 |
Bélet Holding SA | 5 |
1 |
Dahle Burotechnik GmbH | 6 |
1 |
Devecka Enterprises, Inc. | 1 |
1 |
ID Signsystems, Inc. | 1 |
1 |
Jerry's Artarama | 1 |
1 |
Maped | 45 |
1 |
Schwan-STABILO Cosmetics GmbH & Co. KG | 100 |
1 |
University of Louisville Research Foundation, Inc. | 709 |
1 |
Ningbo Tianhong Stationery Co.,Ltd. | 17 |
1 |
Safety Nailer LLC | 7 |
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 | 4 |