- All sections
- G - Physics
- G09B - Educational or demonstration appliancesappliances for teaching, or communicating with, the blind, deaf or mutemodelsplanetariaglobesmapsdiagrams
- G09B 13/00 - Teaching typing
Patent holdings for IPC class G09B 13/00
Total number of patents in this class: 30
10-year publication summary
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0
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7
|
1
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3
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4
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2
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0
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1
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1
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cognivue, Inc. | 39 |
11 |
| No Tears Learning, Inc., DBA Handwriting Without Tears | 23 |
4 |
| Type A+, LLC | 6 |
3 |
| Yabla | 3 |
2 |
| Verizon Patent And Licensing Inc. | 7668 |
1 |
| Microsoft Technology Licensing, LLC | 54510 |
1 |
| Cognatus Innovations LLC | 6 |
1 |
| Ellsworth Publishing Company, Inc. | 1 |
1 |
| Hancom Inc. | 62 |
1 |
| Key Learning Limited | 1 |
1 |
| Type A+llc | 1 |
1 |
| Universidad Autónoma de Chiriquí | 10 |
1 |
| KeyMaster Electronics LLC | 1 |
1 |
| Lenovo Switzerland International GmbH | 2097 |
1 |
| Other owners | 0 |