- All sections
- G - Physics
- G09B - Educational or demonstration appliancesappliances for teaching, or communicating with, the blind, deaf or mutemodelsplanetariaglobesmapsdiagrams
- G09B 7/04 - 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 characterised by modifying the teaching programme in response to a wrong answer, e.g. repeating the question, supplying a further explanation
Patent holdings for IPC class G09B 7/04
Total number of patents in this class: 405
10-year publication summary
|
49
|
64
|
47
|
40
|
53
|
38
|
43
|
31
|
30
|
26
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| International Business Machines Corporation | 62182 |
29 |
| Pearson Education, Inc. | 472 |
27 |
| Enduvo, Inc. | 53 |
18 |
| Casio Computer Co., Ltd. | 3487 |
13 |
| Young, Eric Wallace | 12 |
12 |
| Breakthrough Performancetech, LLC | 34 |
10 |
| 2HR Learning, Inc. | 62 |
8 |
| University of Central Florida Research Foundation, Inc. | 1232 |
5 |
| Learning System of The Future, Inc. | 8 |
5 |
| Samsung Electronics Co., Ltd. | 153573 |
4 |
| Fujitsu Limited | 16989 |
4 |
| Koninklijke Philips N.V. | 25570 |
4 |
| Daekyo Co., Ltd. | 36 |
4 |
| Riiid Inc. | 75 |
4 |
| Obrizum Group Ltd. | 21 |
4 |
| Umelabo Co., Ltd. | 6 |
4 |
| NEC Corporation | 36611 |
3 |
| British Telecommunications Public Limited Company | 2596 |
3 |
| BrainPOP IP LLC | 27 |
3 |
| Fluidity Software, Inc. | 5 |
3 |
| Other owners | 238 |