- All sections
- H - Electricity
- H04H - Broadcast communication
- H04H 20/18 - Arrangements for synchronising broadcast or distribution via plural systems
Patent holdings for IPC class H04H 20/18
Total number of patents in this class: 230
10-year publication summary
|
26
|
23
|
24
|
20
|
19
|
7
|
13
|
7
|
9
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Intellectual Property Corporation of America | 7231 |
16 |
| Google Technology Holdings LLC | 2055 |
13 |
| Sonos, Inc. | 2875 |
9 |
| LG Electronics Inc. | 75855 |
8 |
| Sony Corporation | 30111 |
8 |
| iBiquity Digital Corporation | 264 |
7 |
| Samsung Electronics Co., Ltd. | 158442 |
6 |
| Enensys Technologies | 64 |
6 |
| Saturn Licensing LLC | 1440 |
6 |
| Time Warner Cable Enterprises LLC | 850 |
6 |
| WISER Systems, Inc. | 46 |
6 |
| Qualcomm Incorporated | 92859 |
5 |
| Comcast Cable Communications, LLC | 5199 |
5 |
| iHeartMedia Management Services, Inc. | 370 |
5 |
| Sun Patent Trust | 2000 |
5 |
| Amazon Technologies, Inc. | 28193 |
4 |
| Bose Corporation | 3093 |
4 |
| TDF | 92 |
4 |
| Lazer Adds, LLC | 6 |
4 |
| NEC Corporation | 37168 |
3 |
| Other owners | 100 |