- All sections
- B - Performing operations; transporting
- B43K - Implements for writing or drawing
- B43K 23/016 - Holders for crayons or chalks
Patent holdings for IPC class B43K 23/016
Total number of patents in this class: 31
10-year publication summary
|
4
|
5
|
3
|
7
|
8
|
3
|
2
|
3
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eisen GmbH | 11 |
4 |
| Sanford, L.P. | 948 |
4 |
| Kotobuki & Co., Ltd. | 109 |
3 |
| CW Consulting Associates, LLC | 15 |
3 |
| Crayola LLC | 177 |
2 |
| Dpg USA Inc. | 57 |
2 |
| Two Sparrows Learning Systems, Inc. | 2 |
2 |
| De Novo s.r.o. | 1 |
1 |
| Devecka Enterprises, Inc. | 1 |
1 |
| Huddart, Alastair | 1 |
1 |
| Pencil Skins, LLC | 1 |
1 |
| Sakura Color Products Corporation | 265 |
1 |
| Societe BIC | 1064 |
1 |
| Tokiwa Corporation | 146 |
1 |
| Marxman Limited | 3 |
1 |
| F.i.l.a.—fabrica Italiana LAPIS Ed Affini S.p.A. | 4 |
1 |
| Wrigo LLC | 4 |
1 |
| Staedtler SE | 233 |
1 |
| Other owners | 0 |