- All sections
- H - Electricity
- H04B - Transmission
- H04B 1/74 - TRANSMISSION - Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus
Patent holdings for IPC class H04B 1/74
Total number of patents in this class: 328
10-year publication summary
|
16
|
22
|
9
|
13
|
16
|
20
|
13
|
27
|
16
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 100781 |
51 |
| ZTE Corporation | 39218 |
37 |
| NEC Corporation | 32703 |
20 |
| Fujitsu Limited | 19265 |
8 |
| Nippon Telegraph and Telephone Corporation | 14195 |
6 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
6 |
| Samsung Electronics Co., Ltd. | 131630 |
5 |
| Qualcomm Incorporated | 76576 |
5 |
| Mitsubishi Electric Corporation | 43934 |
5 |
| LG Electronics Inc. | 69257 |
4 |
| ARRIS Enterprises LLC | 3432 |
4 |
| Aviat U.S., Inc. | 219 |
4 |
| ELTA Systems Ltd. | 305 |
4 |
| Hughes Network Systems, LLC | 1098 |
4 |
| The Boeing Company | 19843 |
3 |
| Verisure Sàrl | 185 |
3 |
| Apple Inc. | 50209 |
2 |
| Siemens AG | 24990 |
2 |
| Honeywell International Inc. | 13799 |
2 |
| AT&T Intellectual Property II, L.P. | 1075 |
2 |
| Other owners | 151 |