- All sections
- H - Electricity
- H04H - Broadcast communication
- H04H 20/31 - Arrangements for simultaneous broadcast of plural pieces of information by a single channel using in-band signals, e.g. subsonic or cue signal
Patent holdings for IPC class H04H 20/31
Total number of patents in this class: 101
10-year publication summary
|
2
|
8
|
7
|
15
|
6
|
5
|
4
|
3
|
4
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Nielsen Company (US), LLC | 2644 |
44 |
| iBiquity Digital Corporation | 276 |
9 |
| Adeia Media Solutions Inc. | 267 |
6 |
| Electronics and Telecommunications Research Institute | 9012 |
3 |
| Maxell, Ltd. | 2655 |
3 |
| Nokia Technologies Oy | 16514 |
2 |
| Comcast Cable Communications, LLC | 4441 |
2 |
| iHeartMedia Management Services, Inc. | 364 |
2 |
| TiVo Inc. | 42 |
2 |
| TLS Corp. | 87 |
2 |
| Adori Ai, Inc. | 9 |
2 |
| Yamaha Corporation | 4076 |
1 |
| Continental Automotive GmbH | 5541 |
1 |
| JVC Kenwood Corporation | 2920 |
1 |
| Continental Automotive France | 771 |
1 |
| Dolby International AB | 1050 |
1 |
| GFK Telecontrol AG | 2 |
1 |
| Invidi Technologies Corporation | 105 |
1 |
| Midland Radio Corporation | 25 |
1 |
| Nielsen Media Research, Inc. | 31 |
1 |
| Other owners | 15 |