- 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: 1735
10-year publication summary
|
192
|
227
|
186
|
188
|
140
|
176
|
138
|
130
|
123
|
56
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Microsoft Technology Licensing, LLC | 54524 |
58 |
| International Business Machines Corporation | 62754 |
49 |
| Sorenson IP Holdings, LLC | 309 |
28 |
| Apple Inc. | 59117 |
24 |
| Sony Corporation | 30097 |
24 |
| Capital One Services, LLC. | 10067 |
24 |
| Dot Incorporation | 78 |
24 |
| Freedom Scientific, Inc. | 116 |
22 |
| OrCam Technologies Ltd. | 131 |
21 |
| Enhanced Visions Systems, Inc. | 56 |
20 |
| Samsung Electronics Co., Ltd. | 158605 |
15 |
| Disney Enterprises, Inc. | 6197 |
14 |
| Toyota Motor Corporation | 35992 |
13 |
| Google LLC | 44674 |
13 |
| META Platforms, Inc. | 6891 |
13 |
| Electronics and Telecommunications Research Institute | 9697 |
11 |
| Immersion Corporation | 517 |
10 |
| Boe Technology Group Co., Ltd. | 44484 |
9 |
| Adobe Inc. | 7568 |
9 |
| Sensee, Inc. | 22 |
9 |
| Other owners | 1325 |