- All sections
- H - Electricity
- H04H - Broadcast communication
- H04H 20/12 - Arrangements for monitoring, testing or troubleshooting
Patent holdings for IPC class H04H 20/12
Total number of patents in this class: 174
10-year publication summary
|
13
|
18
|
18
|
26
|
18
|
11
|
14
|
13
|
9
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| iBiquity Digital Corporation | 267 |
12 |
| Viavi Solutions Inc. | 1363 |
10 |
| DIRECTV, LLC | 812 |
7 |
| iHeartMedia Management Services, Inc. | 362 |
7 |
| Hitachi Kokusai Electric Inc. | 1070 |
6 |
| LG Electronics Inc. | 69257 |
5 |
| DISH Technologies L.L.C. | 1666 |
5 |
| Makita Corporation | 2339 |
4 |
| ARRIS Enterprises LLC | 3432 |
4 |
| The Nielsen Company (US), LLC | 2549 |
4 |
| Spirent Communications, Inc. | 152 |
4 |
| Promptlink Communications, Inc. | 27 |
4 |
| AT&T Intellectual Property I, L.P. | 9886 |
3 |
| NEC Corporation | 32703 |
3 |
| Imagination Technologies Limited | 1458 |
3 |
| Sony Semiconductor Solutions Corporation | 8770 |
3 |
| Time Warner Cable Enterprises LLC | 945 |
3 |
| Wi-lan Inc. | 145 |
3 |
| Qualcomm Incorporated | 76576 |
2 |
| Sony Corporation | 32931 |
2 |
| Other owners | 80 |