- All sections
- G - Physics
- G09B - Educational or demonstration appliances; appliances for teaching, or communicating with, the blind, deaf or mute; models; planetaria; globes; maps; diagrams
- G09B 13/00 - Teaching typing
Patent holdings for IPC class G09B 13/00
Total number of patents in this class: 31
10-year publication summary
|
3
|
6
|
0
|
7
|
1
|
3
|
4
|
2
|
0
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cognivue, Inc. | 42 |
11 |
| No Tears Learning, Inc., DBA Handwriting Without Tears | 29 |
4 |
| Type A+, LLC | 5 |
3 |
| Yabla | 3 |
2 |
| KeyMaster Electronics LLC | 2 |
2 |
| Verizon Patent And Licensing Inc. | 6900 |
1 |
| Microsoft Technology Licensing, LLC | 51439 |
1 |
| Lenovo (Singapore) Pte. Ltd. | 2853 |
1 |
| Cognatus Innovations LLC | 5 |
1 |
| Ellsworth Publishing Company, Inc. | 1 |
1 |
| Hancom Inc. | 63 |
1 |
| Key Learning Limited | 1 |
1 |
| Type A+llc | 1 |
1 |
| Universidad Autónoma de Chiriquí | 10 |
1 |
| Other owners | 0 |