- All sections
- G - Physics
- G09B - Educational or demonstration appliancesappliances for teaching, or communicating with, the blind, deaf or mutemodelsplanetariaglobesmapsdiagrams
- G09B 15/02 - Boards or like means for providing an indication of notes
Patent holdings for IPC class G09B 15/02
Total number of patents in this class: 160
10-year publication summary
|
17
|
33
|
26
|
27
|
17
|
28
|
16
|
19
|
15
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Yamaha Corporation | 4082 |
10 |
| Apple Inc. | 55446 |
6 |
| Sunland Information Technology Co., Ltd. | 59 |
6 |
| Casio Computer Co., Ltd. | 3457 |
5 |
| Master Key, LLC | 19 |
5 |
| Harmonix Music Systems, Inc. | 112 |
4 |
| not Impossible LLC | 11 |
4 |
| NuTune Music, Inc. | 5 |
4 |
| Simply Ltd. | 15 |
4 |
| Snap Inc. | 5976 |
3 |
| Associacao Instituto Nacional de Matematica Pura e Aplicada | 4 |
3 |
| Disney Enterprises, Inc. | 6137 |
2 |
| International Business Machines Corporation | 61471 |
2 |
| Ubisoft Entertainment S.A. | 253 |
2 |
| D2l Corporation | 181 |
2 |
| Inmusic Brands, Inc. | 224 |
2 |
| Makemusic, Inc. | 56 |
2 |
| Percebe Music Inc. | 2 |
2 |
| Yousician Oy | 38 |
2 |
| Giovanni Technologies, Inc. | 2 |
2 |
| Other owners | 88 |