- All sections
- B - Performing operations; transporting
- B43L - Articles for writing or drawing upon; accessories for writing or drawing
- B43L 13/04 - Guides for rulers
Patent holdings for IPC class B43L 13/04
Total number of patents in this class: 4
10-year publication summary
|
0
|
1
|
0
|
2
|
1
|
2
|
0
|
0
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| EUROIMMUN Medizinische Labordiagnostika AG | 215 |
1 |
| My Sweet Petunia, Inc. | 32 |
1 |
| Wilton Industries, Inc. | 287 |
1 |
| Alnotrea Pty Ltd | 3 |
1 |
| Other owners | 0 |