- All sections
- G - Physics
- G09B - Educational or demonstration appliancesappliances for teaching, or communicating with, the blind, deaf or mutemodelsplanetariaglobesmapsdiagrams
- G09B 17/00 - Teaching reading
Patent holdings for IPC class G09B 17/00
Total number of patents in this class: 227
10-year publication summary
|
41
|
50
|
40
|
40
|
32
|
25
|
27
|
24
|
24
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| May Patents Ltd. | 140 |
19 |
| Learning Squared, Inc. | 34 |
11 |
| International Business Machines Corporation | 61123 |
10 |
| Amazon Technologies, Inc. | 26519 |
5 |
| Breakthrough Performancetech, LLC | 34 |
5 |
| Education4sight GmbH | 20 |
5 |
| Educational Testing Service | 246 |
4 |
| Pearson Education, Inc. | 464 |
4 |
| Apple Inc. | 54527 |
3 |
| East Carolina University | 179 |
3 |
| Voxy, Inc., DBA Voxy, Inc. | 16 |
3 |
| Hannah Faith Silver | 3 |
3 |
| Massachusetts Institute of Technology | 10019 |
2 |
| Microsoft Technology Licensing, LLC | 53545 |
2 |
| Age of Learning, Inc. | 72 |
2 |
| Amplify Education, Inc. | 35 |
2 |
| Discovery Education, Inc. | 52 |
2 |
| Dreambox Learning Inc. | 32 |
2 |
| Focus Reading Technology Inc. | 7 |
2 |
| Google LLC | 41903 |
2 |
| Other owners | 136 |