- All sections
- G - Physics
- G09B - Educational or demonstration appliancesappliances for teaching, or communicating with, the blind, deaf or mutemodelsplanetariaglobesmapsdiagrams
- G09B 7/02 - Electrically-operated teaching apparatus or devices working with questions and answers of the type wherein the student is expected to construct an answer to the question which is presented or wherein the machine gives an answer to the question presented by the student
Patent holdings for IPC class G09B 7/02
Total number of patents in this class: 969
10-year publication summary
|
134
|
137
|
154
|
153
|
110
|
114
|
101
|
82
|
94
|
58
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Pearson Education, Inc. | 464 |
58 |
| International Business Machines Corporation | 61228 |
54 |
| Enduvo, Inc. | 46 |
17 |
| Microsoft Technology Licensing, LLC | 53720 |
15 |
| Educational Testing Service | 243 |
15 |
| D2l Corporation | 183 |
13 |
| Fujitsu Limited | 18351 |
12 |
| Casio Computer Co., Ltd. | 3431 |
12 |
| HMH Education Company | 234 |
11 |
| Cognivue, Inc. | 41 |
10 |
| Riiid Inc. | 87 |
9 |
| Sony Corporation | 31052 |
8 |
| NEC Corporation | 35652 |
8 |
| The Regents of the University of California | 19918 |
7 |
| Shenzhen Eaglesoul Technology Co., Ltd. | 101 |
7 |
| Kyndryl, Inc. | 3221 |
7 |
| President and Fellows of Harvard College | 5976 |
6 |
| Breakthrough Performancetech, LLC | 34 |
6 |
| Coursera, Inc. | 43 |
6 |
| Wacom Co., Ltd. | 1899 |
6 |
| Other owners | 682 |