- 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 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: 1601
10-year publication summary
|
136
|
186
|
192
|
227
|
186
|
188
|
138
|
168
|
126
|
44
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Microsoft Technology Licensing, LLC | 51439 |
54 |
| Freedom Scientific, Inc. | 230 |
53 |
| International Business Machines Corporation | 60644 |
50 |
| Apple Inc. | 50209 |
25 |
| Sony Corporation | 32931 |
24 |
| OrCam Technologies Ltd. | 142 |
22 |
| Sorenson IP Holdings, LLC | 287 |
21 |
| Capital One Services, LLC. | 7551 |
19 |
| Dot Incorporation | 59 |
16 |
| Samsung Electronics Co., Ltd. | 131630 |
14 |
| Toyota Motor Corporation | 28582 |
13 |
| META Platforms, Inc. | 7514 |
13 |
| Disney Enterprises, Inc. | 6012 |
12 |
| Immersion Corporation | 586 |
10 |
| Electronics and Telecommunications Research Institute | 8830 |
9 |
| Boe Technology Group Co., Ltd. | 35384 |
9 |
| Google LLC | 38759 |
9 |
| Verizon Patent And Licensing Inc. | 6900 |
8 |
| eSight Corp. | 64 |
8 |
| Toyota Motor Engineering & Manufacturing North America, Inc. | 1455 |
8 |
| Other owners | 1204 |