- All sections
- G - Physics
- G09B - Educational or demonstration appliancesappliances for teaching, or communicating with, the blind, deaf or mutemodelsplanetariaglobesmapsdiagrams
- G09B 21/00 - Teaching, or communicating with, the blind, deaf or mute
Patent holdings for IPC class G09B 21/00
Total number of patents in this class: 1696
10-year publication summary
|
179
|
185
|
218
|
181
|
182
|
135
|
171
|
130
|
123
|
105
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Microsoft Technology Licensing, LLC | 54340 |
57 |
| International Business Machines Corporation | 61747 |
49 |
| Sorenson IP Holdings, LLC | 308 |
28 |
| Apple Inc. | 56466 |
25 |
| Sony Corporation | 30769 |
24 |
| Capital One Services, LLC. | 9491 |
23 |
| Dot Incorporation | 75 |
23 |
| Enhanced Visions Systems, Inc. | 64 |
22 |
| OrCam Technologies Ltd. | 131 |
21 |
| Freedom Scientific, Inc. | 123 |
20 |
| Samsung Electronics Co., Ltd. | 149198 |
15 |
| Disney Enterprises, Inc. | 6174 |
14 |
| Toyota Motor Corporation | 33519 |
13 |
| META Platforms, Inc. | 6994 |
13 |
| Google LLC | 43134 |
12 |
| Electronics and Telecommunications Research Institute | 9359 |
10 |
| Immersion Corporation | 523 |
10 |
| Boe Technology Group Co., Ltd. | 41810 |
9 |
| Adobe Inc. | 7261 |
9 |
| Intel Corporation | 46471 |
8 |
| Other owners | 1291 |