- 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 13/02 - Dummy practice keyboard apparatus
Patent holdings for IPC class G09B 13/02
Total number of patents in this class: 4
10-year publication summary
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0
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1
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0
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2
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0
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0
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0
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0
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0
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0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Microsoft Technology Licensing, LLC | 51439 |
2 |
| Spoonjack, LLC | 9 |
1 |
| Universidad Autónoma de Chiriquí | 10 |
1 |
| Other owners | 0 |