- 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: 467
10-year publication summary
|
70
|
68
|
53
|
68
|
63
|
64
|
58
|
49
|
39
|
19
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| International Business Machines Corporation | 61305 |
17 |
| Pearson Education, Inc. | 465 |
11 |
| Rosetta Stone LLC | 54 |
11 |
| Voxy, Inc., DBA Voxy, Inc. | 16 |
10 |
| Rosetta Stone Ltd. | 31 |
9 |
| Age of Learning, Inc. | 72 |
8 |
| Educational Testing Service | 242 |
8 |
| Casio Computer Co., Ltd. | 3431 |
7 |
| Microsoft Technology Licensing, LLC | 53786 |
7 |
| Nippon Telegraph and Telephone Corporation | 17362 |
6 |
| Lexia Learning Systems LLC | 35 |
6 |
| Apple Inc. | 55174 |
5 |
| Sony Corporation | 31025 |
5 |
| Amazon Technologies, Inc. | 26762 |
5 |
| Education4sight GmbH | 21 |
5 |
| POSTECH Academy-industry Foundation | 1089 |
5 |
| Kyndryl, Inc. | 3222 |
5 |
| Breakthrough Performancetech, LLC | 34 |
4 |
| Wespeke, Inc. | 10 |
4 |
| JiveWorld SPC | 7 |
4 |
| Other owners | 325 |