- All sections
- A - Human necessities
- A63H - Toys, e.g. tops, dolls, hoops or building blocks
- A63H 3/31 - Bellows, cylinders or the like for sound production
Patent holdings for IPC class A63H 3/31
Total number of patents in this class: 10
10-year publication summary
|
1
|
4
|
1
|
1
|
0
|
2
|
1
|
1
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sankyo Riken Corporation | 4 |
2 |
| Sony Corporation | 32931 |
1 |
| Doskocil Manufacturing Company, Inc. | 571 |
1 |
| Rovi Guides, Inc. | 3236 |
1 |
| StarMark Pet Products, Inc. | 66 |
1 |
| WOW! Creations HK Limited | 1 |
1 |
| Thin Air Creations, LLC | 1 |
1 |
| FAS Design LLC | 8 |
1 |
| Pluto OpCo (Cayman), LLC | 328 |
1 |
| Other owners | 0 |