- All sections
- B - Performing operations; transporting
- B43L - Articles for writing or drawing upon; accessories for writing or drawing
- B43L 13/20 - Curve rulers or templets
Patent holdings for IPC class B43L 13/20
Total number of patents in this class: 25
10-year publication summary
|
3
|
4
|
1
|
5
|
9
|
5
|
4
|
6
|
4
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rockler Companies, Inc. | 88 |
4 |
| Rulersmith IP, Inc. | 6 |
3 |
| The Boeing Company | 19843 |
2 |
| Crayola LLC | 177 |
2 |
| Koala Tools LLC, DBA Koala Tools | 3 |
2 |
| ABB Schweiz AG | 6321 |
1 |
| Johnson Level & Tool Mfg. Co., Inc. | 79 |
1 |
| King Saud University | 332 |
1 |
| Ostberg Design APS | 1 |
1 |
| Susan Pelland | 3 |
1 |
| Trends International, LLC | 37 |
1 |
| WeCool Toys Inc. | 64 |
1 |
| Triple Track, LLC | 11 |
1 |
| New Leaf Stitches, LLC | 1 |
1 |
| Adir Garji | 1 |
1 |
| Moshe Ego | 1 |
1 |
| Butler Scanning, Inc. | 1 |
1 |
| Other owners | 0 |