- 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 19/06 - Foreign languages
Patent holdings for IPC class G09B 19/06
Total number of patents in this class: 458
10-year publication summary
47
|
72
|
72
|
55
|
69
|
71
|
68
|
57
|
48
|
11
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
International Business Machines Corporation | 60644 |
17 |
Rosetta Stone LLC | 51 |
11 |
Educational Testing Service | 259 |
10 |
Voxy, Inc., DBA Voxy, Inc. | 16 |
10 |
Rosetta Stone Ltd. | 36 |
9 |
Age of Learning, Inc. | 68 |
8 |
Pearson Education, Inc. | 453 |
8 |
Microsoft Technology Licensing, LLC | 51439 |
7 |
Casio Computer Co., Ltd. | 3343 |
6 |
Lexia Learning Systems LLC | 36 |
6 |
Apple Inc. | 50209 |
5 |
Sony Corporation | 32931 |
5 |
Nippon Telegraph and Telephone Corporation | 14195 |
5 |
Education4sight GmbH | 20 |
5 |
POSTECH Academy-industry Foundation | 1101 |
5 |
Learning Squared, Inc. | 38 |
5 |
Kyndryl, Inc. | 3161 |
5 |
Amazon Technologies, Inc. | 24422 |
4 |
Breakthrough Performancetech, LLC | 34 |
4 |
Neuron Fuel, Inc. | 13 |
4 |
Other owners | 319 |