- 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: 249
10-year publication summary
|
50
|
40
|
40
|
32
|
25
|
27
|
25
|
27
|
22
|
20
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| May Patents Ltd. | 167 |
22 |
| International Business Machines Corporation | 62754 |
11 |
| Learning Squared, Inc. | 33 |
11 |
| Breakthrough Performancetech, LLC | 34 |
6 |
| Amazon Technologies, Inc. | 28216 |
5 |
| Education4sight GmbH | 21 |
5 |
| Educational Testing Service | 236 |
4 |
| Pearson Education, Inc. | 475 |
4 |
| Apple Inc. | 59117 |
3 |
| Microsoft Technology Licensing, LLC | 54524 |
3 |
| Amplify Education, Inc. | 36 |
3 |
| East Carolina University | 172 |
3 |
| Hallmark Cards, Incorporated | 440 |
3 |
| Leo Paper Bags Manufacturing (1982) Limited | 21 |
3 |
| Hannah Faith Silver | 3 |
3 |
| 2HR Learning, Inc. | 71 |
3 |
| Voxy Holdings Ltd. | 10 |
3 |
| Massachusetts Institute of Technology | 10285 |
2 |
| Age of Learning, Inc. | 72 |
2 |
| Discovery Education, Inc. | 77 |
2 |
| Other owners | 148 |