- All sections
- G - Physics
- G09B - Educational or demonstration appliances; appliances for teaching, or communicating with, the blind, deaf or mute; models; planetaria; globes; maps; diagrams
- G09B 17/00 - Teaching reading
Patent holdings for IPC class G09B 17/00
Total number of patents in this class: 217
10-year publication summary
25
|
41
|
50
|
40
|
40
|
32
|
25
|
26
|
23
|
7
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
May Patents Ltd. | 124 |
18 |
Learning Squared, Inc. | 38 |
12 |
International Business Machines Corporation | 60644 |
11 |
Amazon Technologies, Inc. | 24422 |
5 |
Breakthrough Performancetech, LLC | 34 |
5 |
Education4sight GmbH | 20 |
5 |
Educational Testing Service | 259 |
4 |
Pearson Education, Inc. | 453 |
4 |
Apple Inc. | 50209 |
3 |
East Carolina University | 177 |
3 |
Square Panda Inc. | 19 |
3 |
Voxy, Inc., DBA Voxy, Inc. | 16 |
3 |
Hannah Faith Silver | 3 |
3 |
AT&T Intellectual Property I, L.P. | 9886 |
2 |
Massachusetts Institute of Technology | 9795 |
2 |
Age of Learning, Inc. | 68 |
2 |
Focus Reading Technology Inc. | 8 |
2 |
Google LLC | 38759 |
2 |
Hallmark Cards, Incorporated | 337 |
2 |
LeapFrog Enterprises, Inc. | 176 |
2 |
Other owners | 124 |