- All sections
- G - Physics
- G09B - Educational or demonstration appliancesappliances for teaching, or communicating with, the blind, deaf or mutemodelsplanetariaglobesmapsdiagrams
- G09B 21/02 - Devices for Braille writing
Patent holdings for IPC class G09B 21/02
Total number of patents in this class: 84
10-year publication summary
|
16
|
9
|
13
|
17
|
13
|
9
|
6
|
8
|
3
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Freedom Scientific, Inc. | 217 |
11 |
| Microsoft Technology Licensing, LLC | 52933 |
3 |
| Dot Incorporation | 67 |
3 |
| Optelec Holding B.V. | 11 |
3 |
| Perkins School for the Blind | 26 |
3 |
| Intel Corporation | 46179 |
2 |
| Google Technology Holdings LLC | 2436 |
2 |
| Visa International Service Association | 4483 |
2 |
| Dentsu Inc. | 167 |
2 |
| Technologies HumanWare Inc. | 46 |
2 |
| Universidad Catolica de La Santisima Concepcion | 24 |
2 |
| Inside Vision | 5 |
2 |
| Sensee, Inc. | 21 |
2 |
| Samsung Electronics Co., Ltd. | 139551 |
1 |
| International Business Machines Corporation | 60224 |
1 |
| Seiko Epson Corporation | 19020 |
1 |
| Eastman Kodak Company | 3035 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10700 |
1 |
| Korea Advanced Institute of Science and Technology | 4208 |
1 |
| Ball Corporation | 398 |
1 |
| Other owners | 38 |