- All sections
- H - Electricity
- H04H - Broadcast communication
- H04H 20/67 - Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency
Patent holdings for IPC class H04H 20/67
Total number of patents in this class: 180
10-year publication summary
|
13
|
13
|
6
|
9
|
8
|
7
|
6
|
4
|
6
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Enensys Technologies | 62 |
15 |
| Qualcomm Incorporated | 76576 |
11 |
| Cisco Technology, Inc. | 18858 |
8 |
| TDF | 106 |
8 |
| ROHDE & Schwarz GmbH & Co. KG | 1831 |
7 |
| Apple Inc. | 50209 |
6 |
| Electronics and Telecommunications Research Institute | 8830 |
6 |
| Gatesair, Inc. | 65 |
6 |
| Lazer Adds, LLC | 7 |
5 |
| Avago Technologies International Sales Pte. Limited | 9260 |
4 |
| Samsung Electronics Co., Ltd. | 131630 |
3 |
| Thomson Licensing | 4027 |
3 |
| AT&T Mobility II LLC | 1982 |
3 |
| Harris Corporation | 1591 |
3 |
| The Nielsen Company (US), LLC | 2549 |
3 |
| Wi-lan Inc. | 145 |
3 |
| L3Harris Technologies, Inc. | 248 |
3 |
| LG Electronics Inc. | 69257 |
2 |
| Ericsson | 20417 |
2 |
| Sharp Corporation | 10015 |
2 |
| Other owners | 77 |