- 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: 473
10-year publication summary
|
70
|
68
|
53
|
68
|
63
|
64
|
59
|
48
|
39
|
30
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| International Business Machines Corporation | 61747 |
17 |
| Pearson Education, Inc. | 469 |
11 |
| Rosetta Stone LLC | 55 |
11 |
| Voxy Holdings Ltd. | 10 |
10 |
| Rosetta Stone Ltd. | 30 |
9 |
| Age of Learning, Inc. | 70 |
8 |
| Educational Testing Service | 240 |
8 |
| Casio Computer Co., Ltd. | 3452 |
7 |
| Microsoft Technology Licensing, LLC | 54340 |
7 |
| Nippon Telegraph and Telephone Corporation | 16319 |
6 |
| Lexia Learning Systems LLC | 35 |
6 |
| Apple Inc. | 56466 |
5 |
| Sony Corporation | 30769 |
5 |
| Amazon Technologies, Inc. | 27247 |
5 |
| Breakthrough Performancetech, LLC | 35 |
5 |
| Education4sight GmbH | 21 |
5 |
| POSTECH Academy-industry Foundation | 1084 |
5 |
| JiveWorld SPC | 8 |
5 |
| Kyndryl, Inc. | 3213 |
5 |
| Google LLC | 43134 |
4 |
| Other owners | 329 |