- 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: 1657
10-year publication summary
|
186
|
192
|
227
|
186
|
188
|
139
|
173
|
132
|
124
|
68
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Microsoft Technology Licensing, LLC | 53649 |
56 |
| International Business Machines Corporation | 61207 |
49 |
| Sorenson IP Holdings, LLC | 305 |
28 |
| Apple Inc. | 54658 |
25 |
| Sony Corporation | 31093 |
24 |
| Capital One Services, LLC. | 9100 |
22 |
| Enhanced Visions Systems, Inc. | 61 |
22 |
| Freedom Scientific, Inc. | 153 |
21 |
| OrCam Technologies Ltd. | 131 |
21 |
| Dot Incorporation | 72 |
20 |
| Samsung Electronics Co., Ltd. | 145416 |
14 |
| Disney Enterprises, Inc. | 6088 |
13 |
| Toyota Motor Corporation | 31819 |
13 |
| META Platforms, Inc. | 7143 |
13 |
| Google LLC | 42038 |
12 |
| Immersion Corporation | 532 |
10 |
| Electronics and Telecommunications Research Institute | 9367 |
9 |
| Boe Technology Group Co., Ltd. | 40912 |
9 |
| Adobe Inc. | 7131 |
9 |
| Sensee, Inc. | 26 |
9 |
| Other owners | 1258 |