- All sections
- G - Physics
- G09B - Educational or demonstration appliancesappliances for teaching, or communicating with, the blind, deaf or mutemodelsplanetariaglobesmapsdiagrams
- G09B 19/06 - Foreign languages
Patent holdings for IPC class G09B 19/06
Total number of patents in this class: 475
10-year publication summary
72
|
72
|
55
|
69
|
71
|
68
|
58
|
49
|
39
|
3
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
International Business Machines Corporation | 60129 |
17 |
Pearson Education, Inc. | 456 |
11 |
Rosetta Stone LLC | 52 |
11 |
Educational Testing Service | 244 |
10 |
Voxy, Inc., DBA Voxy, Inc. | 16 |
10 |
Rosetta Stone Ltd. | 33 |
9 |
Age of Learning, Inc. | 70 |
8 |
Casio Computer Co., Ltd. | 3373 |
7 |
Microsoft Technology Licensing, LLC | 52886 |
7 |
Lexia Learning Systems LLC | 36 |
6 |
Apple Inc. | 52750 |
5 |
Sony Corporation | 31541 |
5 |
Amazon Technologies, Inc. | 25909 |
5 |
Nippon Telegraph and Telephone Corporation | 16332 |
5 |
Education4sight GmbH | 19 |
5 |
POSTECH Academy-industry Foundation | 1101 |
5 |
Kyndryl, Inc. | 3200 |
5 |
Breakthrough Performancetech, LLC | 34 |
4 |
Neuron Fuel, Inc. | 13 |
4 |
Wespeke, Inc. | 10 |
4 |
Other owners | 332 |