- All sections
- H - Electricity
- H04H - Broadcast communication
- H04H 20/47 - Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups specially adapted for stereophonic broadcast systems
Patent holdings for IPC class H04H 20/47
Total number of patents in this class: 90
10-year publication summary
|
5
|
3
|
9
|
1
|
2
|
4
|
6
|
2
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 139001 |
6 |
| Electronics and Telecommunications Research Institute | 9021 |
6 |
| Dolby Laboratories Licensing Corporation | 4057 |
5 |
| iBiquity Digital Corporation | 276 |
5 |
| LG Electronics Inc. | 71039 |
4 |
| Dolby International AB | 1048 |
4 |
| Mediatek Inc. | 4813 |
3 |
| Semiconductor Components Industries, L.L.C. | 5246 |
3 |
| Nokia Technologies Oy | 16542 |
3 |
| Middlesex Savings Bank | 31 |
3 |
| Sirius XM Radio LLC | 241 |
3 |
| Yamaha Corporation | 4075 |
2 |
| Microsoft Technology Licensing, LLC | 52886 |
2 |
| SMSC Holdings S.A.R.L. | 51 |
2 |
| Tencent Technology (Shenzhen) Company Limited | 14058 |
2 |
| Apple Inc. | 52750 |
1 |
| Sony Corporation | 31541 |
1 |
| Texas Instruments Incorporated | 19432 |
1 |
| Koninklijke Philips N.V. | 23999 |
1 |
| Koninklijke Philips Electronics N.V. | 10844 |
1 |
| Other owners | 32 |