- 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: 239
10-year publication summary
|
50
|
38
|
37
|
31
|
23
|
27
|
23
|
26
|
20
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| May Patents Ltd. | 154 |
19 |
| International Business Machines Corporation | 62153 |
11 |
| Learning Squared, Inc. | 33 |
11 |
| Breakthrough Performancetech, LLC | 34 |
6 |
| Amazon Technologies, Inc. | 27673 |
5 |
| Education4sight GmbH | 21 |
5 |
| Educational Testing Service | 239 |
4 |
| Pearson Education, Inc. | 472 |
4 |
| Apple Inc. | 58024 |
3 |
| Microsoft Technology Licensing, LLC | 54202 |
3 |
| East Carolina University | 168 |
3 |
| Hallmark Cards, Incorporated | 441 |
3 |
| Leo Paper Bags Manufacturing (1982) Limited | 21 |
3 |
| Hannah Faith Silver | 3 |
3 |
| 2HR Learning, Inc. | 61 |
3 |
| Voxy Holdings Ltd. | 10 |
3 |
| Massachusetts Institute of Technology | 10183 |
2 |
| Age of Learning, Inc. | 72 |
2 |
| Amplify Education, Inc. | 36 |
2 |
| Discovery Education, Inc. | 51 |
2 |
| Other owners | 142 |