- All sections
- G - Physics
- G09B - Educational or demonstration appliances; appliances for teaching, or communicating with, the blind, deaf or mute; models; planetaria; globes; maps; diagrams
- G09B 11/04 - Guide sheets or plates; Tracing charts
Patent holdings for IPC class G09B 11/04
Total number of patents in this class: 18
10-year publication summary
|
6
|
4
|
7
|
7
|
6
|
1
|
6
|
4
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mattel, Inc. | 3192 |
2 |
| The Johns Hopkins University | 5377 |
1 |
| Japan Science and Technology Agency | 1564 |
1 |
| Artec Co., Ltd. | 13 |
1 |
| Creative Notions, LLC | 2 |
1 |
| Imperial Toy, LLC | 47 |
1 |
| MeadWestvaco Corporation | 370 |
1 |
| National Taiwan Normal University | 124 |
1 |
| SKM Advanced Products Limited | 3 |
1 |
| Kinephonics IP Pty Limited | 8 |
1 |
| The Genius Notebook Ltd. | 1 |
1 |
| LI, Qingzong | 1 |
1 |
| Office Sunny Co. ,ltd. | 3 |
1 |
| Shizuoka Prefectural Hospital Organization | 2 |
1 |
| Sricom Pty. Limited | 1 |
1 |
| Playmonster Group LLC | 203 |
1 |
| da VINCI Eye, LLC | 2 |
1 |
| Other owners | 0 |