- All sections
- G - Physics
- G09B - Educational or demonstration appliancesappliances for teaching, or communicating with, the blind, deaf or mutemodelsplanetariaglobesmapsdiagrams
- G09B 3/06 - Manually- or mechanically-operated teaching appliances working with questions and answers of the multiple-choice answer type, i.e. where a given question is provided with a series of answers and a choice has to be made
Patent holdings for IPC class G09B 3/06
Total number of patents in this class: 17
10-year publication summary
|
3
|
0
|
2
|
4
|
8
|
1
|
1
|
1
|
2
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Johns Hopkins University | 5882 |
2 |
| Microsoft Technology Licensing, LLC | 54466 |
1 |
| Korea Advanced Institute of Science and Technology | 4664 |
1 |
| Pluralsight, LLC | 11 |
1 |
| 4M Industrial Development Limited | 19 |
1 |
| ACADIA Pharmaceuticals Inc. | 194 |
1 |
| DISH Network L.L.C. | 952 |
1 |
| Green Energy Nano Technology Co., Ltd. | 7 |
1 |
| Imaging Business Machines LLC | 20 |
1 |
| Pleiades Publishing Ltd. | 6 |
1 |
| Renaissance Learning, Inc. | 182 |
1 |
| Scantron Corporation | 10 |
1 |
| Academic Integrity Solutions, LLC | 1 |
1 |
| CREACUBE Co., Ltd. | 2 |
1 |
| Birchhoover LLC d/b/a Livedx | 1 |
1 |
| 2HR Learning, Inc. | 69 |
1 |
| Other owners | 0 |